| flap | | |
| n. (artifact) | 1. flap | any broad thin and limber covering attached at one edge; hangs loose or projects freely.; "he wrote on the flap of the envelope" |
| ~ barndoor | an opaque adjustable flap on a lamp fixture; used in photography to cut off light from particular areas. |
| ~ coattail | the loose back flap of a coat that hangs below the waist. |
| ~ codpiece | (15th-16th century) a flap for the crotch of men's tight-fitting breeches. |
| ~ covering | an artifact that covers something else (usually to protect or shelter or conceal it). |
| ~ earflap, earlap | one of two flaps attached to a cap to keep the ears warm. |
| ~ dag, jag | a flap along the edge of a garment; used in medieval clothing. |
| ~ overlap, lap | a flap that lies over another part.; "the lap of the shingles should be at least ten inches" |
| ~ pocket flap | a flap that covers the access to a pocket. |
| ~ fly sheet, rainfly, tent-fly, tent flap, fly | flap consisting of a piece of canvas that can be drawn back to provide entrance to a tent. |
| ~ tongue | the flap of material under the laces of a shoe or boot. |
| n. (state) | 2. dither, flap, fuss, pother, tizzy | an excited state of agitation.; "he was in a dither"; "there was a terrible flap about the theft" |
| ~ agitation | a mental state of extreme emotional disturbance. |
| n. (event) | 3. flap, flapping, flutter, fluttering | the motion made by flapping up and down. |
| ~ undulation, wave | (physics) a movement up and down or back and forth. |
| n. (body) | 4. flap | a movable piece of tissue partly connected to the body. |
| ~ animal tissue | the tissue in the bodies of animals. |
| ~ uvula | a small pendant fleshy lobe at the back of the soft palate. |
| ~ soft palate, velum | a muscular flap that closes off the nasopharynx during swallowing or speaking. |
| ~ protective fold | a flap of tissue that protects what it covers. |
| ~ leaflet, cusp | a thin triangular flap of a heart valve. |
| n. (artifact) | 5. flap, flaps | a movable airfoil that is part of an aircraft wing; used to increase lift or drag. |
| ~ aerofoil, airfoil, control surface, surface | a device that provides reactive force when in motion relative to the surrounding air; can lift or control a plane in flight. |
| ~ landing flap | a flap on the underside of the wing that is lowered to slow the plane for landing. |
| ~ wing | one of the horizontal airfoils on either side of the fuselage of an airplane. |
| v. (motion) | 6. flap, roll, undulate, wave | move in a wavy pattern or with a rising and falling motion.; "The curtains undulated"; "the waves rolled towards the beach" |
| ~ move | move so as to change position, perform a nontranslational motion.; "He moved his hand slightly to the right" |
| ~ luff | flap when the wind is blowing equally on both sides.; "the sails luffed" |
| v. (motion) | 7. flap | move noisily.; "flags flapped in the strong wind" |
| ~ thump, beat, pound | move rhythmically.; "Her heart was beating fast" |
| v. (motion) | 8. beat, flap | move with a thrashing motion.; "The bird flapped its wings"; "The eagle beat its wings and soared high into the sky" |
| ~ move, displace | cause to move or shift into a new position or place, both in a concrete and in an abstract sense.; "Move those boxes into the corner, please"; "I'm moving my money to another bank"; "The director moved more responsibilities onto his new assistant" |
| ~ flutter | flap the wings rapidly or fly with flapping movements.; "The seagulls fluttered overhead" |
| ~ flap, beat | move with a flapping motion.; "The bird's wings were flapping" |
| ~ bate | flap the wings wildly or frantically; used of falcons. |
| ~ clap | cause to strike the air in flight.; "The big bird clapped its wings" |
| v. (motion) | 9. beat, flap | move with a flapping motion.; "The bird's wings were flapping" |
| ~ move | move so as to change position, perform a nontranslational motion.; "He moved his hand slightly to the right" |
| ~ flap, beat | move with a thrashing motion.; "The bird flapped its wings"; "The eagle beat its wings and soared high into the sky" |
| ~ flail, thresh | move like a flail; thresh about.; "Her arms were flailing" |
| ~ clap | strike the air in flight.; "the wings of the birds clapped loudly" |
| v. (emotion) | 10. dither, flap, pother | make a fuss; be agitated. |
| ~ fret, fuss, niggle | worry unnecessarily or excessively.; "don't fuss too much over the grandchildren--they are quite big now" |
| v. (communication) | 11. flap | pronounce with a flap, of alveolar sounds. |
| ~ enounce, enunciate, pronounce, sound out, articulate, say | speak, pronounce, or utter in a certain way.; "She pronounces French words in a funny way"; "I cannot say `zip wire'"; "Can the child sound out this complicated word?" |
| flutter | | |
| n. (act) | 1. flicker, flutter, waver | the act of moving back and forth. |
| ~ movement, motility, motion, move | a change of position that does not entail a change of location.; "the reflex motion of his eyebrows revealed his surprise"; "movement is a sign of life"; "an impatient move of his hand"; "gastrointestinal motility" |
| n. (state) | 2. flutter | abnormally rapid beating of the auricles of the heart (especially in a regular rhythm); can result in heart block. |
| ~ arrhythmia, cardiac arrhythmia | an abnormal rate of muscle contractions in the heart. |
| n. (state) | 3. commotion, disruption, disturbance, flutter, hoo-ha, hoo-hah, hurly burly, kerfuffle, to-do | a disorderly outburst or tumult.; "they were amazed by the furious disturbance they had caused" |
| ~ disorder | a disturbance of the peace or of public order. |
| ~ turmoil, upheaval, convulsion | a violent disturbance.; "the convulsions of the stock market" |
| ~ earthquake | a disturbance that is extremely disruptive.; "selling the company caused an earthquake among the employees" |
| ~ incident | a public disturbance.; "the police investigated an incident at the bus station" |
| ~ stir, splash | a prominent or sensational but short-lived news event.; "he made a great splash and then disappeared" |
| ~ tempest, storm | a violent commotion or disturbance.; "the storms that had characterized their relationship had died away"; "it was only a tempest in a teapot" |
| ~ storm center, storm centre | a center of trouble or disturbance. |
| ~ garboil, tumult, tumultuousness, uproar | a state of commotion and noise and confusion. |
| v. (motion) | 4. dart, fleet, flit, flutter | move along rapidly and lightly; skim or dart.; "The hummingbird flitted among the branches" |
| ~ butterfly | flutter like a butterfly. |
| ~ hurry, travel rapidly, zip, speed | move very fast.; "The runner zipped past us at breakneck speed" |
| v. (motion) | 5. flicker, flitter, flutter, quiver, waver | move back and forth very rapidly.; "the candle flickered" |
| ~ move back and forth | move in one direction and then into the opposite direction. |
| v. (motion) | 6. flutter | flap the wings rapidly or fly with flapping movements.; "The seagulls fluttered overhead" |
| ~ flap, beat | move with a thrashing motion.; "The bird flapped its wings"; "The eagle beat its wings and soared high into the sky" |
| v. (motion) | 7. flutter, palpitate | beat rapidly.; "His heart palpitated" |
| ~ thump, beat, pound | move rhythmically.; "Her heart was beating fast" |
| ~ palpitate | cause to throb or beat rapidly.; "Her violent feelings palpitated the young woman's heart" |
| v. (body) | 8. bat, flutter | wink briefly.; "bat one's eyelids" |
| ~ blink, nictate, nictitate, wink | briefly shut the eyes.; "The TV announcer never seems to blink" |
| flipper | | |
| n. (artifact) | 1. fin, flipper | a shoe for swimming; the paddle-like front is an aid in swimming (especially underwater). |
| ~ shoe | footwear shaped to fit the foot (below the ankle) with a flexible upper of leather or plastic and a sole and heel of heavier material. |
| n. (animal) | 2. flipper | the flat broad limb of aquatic animals specialized for swimming. |
| ~ aquatic vertebrate | animal living wholly or chiefly in or on water. |
| ~ aquatic mammal | whales and dolphins; manatees and dugongs; walruses; seals. |
| ~ limb | one of the jointed appendages of an animal used for locomotion or grasping: arm; leg; wing; flipper. |
| pectoral fin | | |
| n. (animal) | 1. pectoral fin | either of a pair of fins situated just behind the head in fishes that help control the direction of movement. |
| ~ fin | organ of locomotion and balance in fishes and some other aquatic animals. |
| wing | | |
| n. (animal) | 1. wing | a movable organ for flying (one of a pair). |
| ~ bird | warm-blooded egg-laying vertebrates characterized by feathers and forelimbs modified as wings. |
| ~ bastard wing, spurious wing, alula | tuft of small stiff feathers on the first digit of a bird's wing. |
| ~ bat, chiropteran | nocturnal mouselike mammal with forelimbs modified to form membranous wings and anatomical adaptations for echolocation by which they navigate. |
| ~ ala | a wing of an insect. |
| ~ fore-wing, fore wing, forewing | either of the anterior pair of wings on an insect that has four wings. |
| ~ haltere, balancer, halter | either of the rudimentary hind wings of dipterous insects; used for maintaining equilibrium during flight. |
| ~ pennon, pinion | wing of a bird. |
| ~ elytron, wing case | either of the horny front wings in beetles and some other insects which cover and protect the functional hind wings. |
| ~ insect | small air-breathing arthropod. |
| ~ flight feather, quill feather, pinion, quill | any of the larger wing or tail feathers of a bird. |
| ~ organ | a fully differentiated structural and functional unit in an animal that is specialized for some particular function. |
| ~ angel | spiritual being attendant upon God. |
| n. (artifact) | 2. wing | one of the horizontal airfoils on either side of the fuselage of an airplane. |
| ~ aileron | an airfoil that controls lateral motion. |
| ~ aerofoil, airfoil, control surface, surface | a device that provides reactive force when in motion relative to the surrounding air; can lift or control a plane in flight. |
| ~ aeroplane, airplane, plane | an aircraft that has a fixed wing and is powered by propellers or jets.; "the flight was delayed due to trouble with the airplane" |
| ~ flaps, flap | a movable airfoil that is part of an aircraft wing; used to increase lift or drag. |
| ~ rib | support resembling the rib of an animal. |
| n. (artifact) | 3. backstage, offstage, wing | a stage area out of sight of the audience. |
| ~ stage | a large platform on which people can stand and can be seen by an audience.; "he clambered up onto the stage and got the actors to help him into the box" |
| n. (group) | 4. wing | a unit of military aircraft. |
| ~ air unit | a military unit that is part of the airforce. |
| ~ armed forces, armed services, military, military machine, war machine | the military forces of a nation.; "their military is the largest in the region"; "the military machine is the same one we faced in 1991 but now it is weaker" |
| ~ air division, division | a unit of the United States Air Force usually comprising two or more wings. |
| ~ squadron | an air force unit larger than a flight and smaller than a group. |
| n. (group) | 5. flank, wing | the side of military or naval formation.; "they attacked the enemy's right flank" |
| ~ armed forces, armed services, military, military machine, war machine | the military forces of a nation.; "their military is the largest in the region"; "the military machine is the same one we faced in 1991 but now it is weaker" |
| ~ formation | an arrangement of people or things acting as a unit.; "a defensive formation"; "a formation of planes" |
| n. (person) | 6. wing | a hockey player stationed in a forward position on either side. |
| ~ hockey player, ice-hockey player | an athlete who plays hockey. |
| n. (location) | 7. wing | (in flight formation) a position to the side and just to the rear of another aircraft. |
| ~ position, place | the particular portion of space occupied by something.; "he put the lamp back in its place" |
| n. (group) | 8. wing | a group within a political party or legislature or other organization that holds distinct views or has a particular function.; "they are the progressive wing of the Republican Party" |
| ~ social group | people sharing some social relation. |
| n. (food) | 9. wing | the wing of a fowl.; "he preferred the drumsticks to the wings" |
| ~ helping, serving, portion | an individual quantity of food or drink taken as part of a meal.; "the helpings were all small"; "his portion was larger than hers"; "there's enough for two servings each" |
| ~ bird, fowl | the flesh of a bird or fowl (wild or domestic) used as food. |
| ~ turkey wing | the wing of a turkey. |
| ~ chicken wing | the wing of a chicken. |
| n. (artifact) | 10. fender, wing | a barrier that surrounds the wheels of a vehicle to block splashing water or mud.; "in Britain they call a fender a wing" |
| ~ barrier | a structure or object that impedes free movement. |
| ~ auto, automobile, car, motorcar, machine | a motor vehicle with four wheels; usually propelled by an internal combustion engine.; "he needs a car to get to work" |
| ~ mudguard, splash-guard, splash guard | a curved piece above the wheel of a bicycle or motorcycle to protect the rider from water or mud thrown up by the wheels. |
| n. (artifact) | 11. annex, annexe, extension, wing | an addition that extends a main building. |
| ~ add-on, addition, improver | a component that is added to something to improve it.; "the addition of a bathroom was a major improvement"; "the addition of cinnamon improved the flavor" |
| ~ building, edifice | a structure that has a roof and walls and stands more or less permanently in one place.; "there was a three-story building on the corner"; "it was an imposing edifice" |
| ~ ell | an extension at the end and at right angles to the main building. |
| v. (motion) | 12. fly, wing | travel through the air; be airborne.; "Man cannot fly" |
| ~ go, locomote, move, travel | change location; move, travel, or proceed, also metaphorically.; "How fast does your new car go?"; "We travelled from Rome to Naples by bus"; "The policemen went from door to door looking for the suspect"; "The soldiers moved towards the city in an attempt to take it before night fell"; "news travelled fast" |
| ~ fly | travel over (an area of land or sea) in an aircraft.; "Lindbergh was the first to fly the Atlantic" |
| ~ buzz | fly low.; "Planes buzzed the crowds in the square" |
| ~ rack | fly in high wind. |
| ~ flight | fly in a flock.; "flighting wild geese" |
| ~ fly on | continue flying. |
| ~ soar | fly upwards or high in the sky. |
| ~ hover | hang in the air; fly or be suspended above. |
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