plume

American Heritage® Dictionary of the English Language, Fourth Edition

1. n. A feather, especially a large and showy one.
2. n. A large feather or cluster of feathers worn as an ornament or symbol of rank, as on a helmet.
3. n. A token of honor or achievement.
4. n. A structure or form that is like a long feather: a plume of smoke.
5. n. Ecology A space in air, water, or soil containing pollutants released from a point source.
6. n. Geology An upwelling of molten material from the earth's mantle.
7. v. To decorate, cover, or supply with or as if with plumes.
8. v. To smooth (feathers); preen.
9. v. To congratulate (oneself) in a self-satisfied way: plumed himself on his victory.

Century Dictionary and Cyclopedia

1. n. A feather. Technically, a pluma or penna: distinguished from plumule. See cut under Oreortyx.
2. n. A tuft of feathers; a set or bunch of plumes worn as an ornament; an egret; plumery.
3. n. Plumage.
4. n. A token of honor; a prize won by contest.
5. n. In botany, same as plumule, 3.
6. n. In entomology: A hair with many fine branches, resembling a little soft feather; a plumate hair.
7. n. A plume-moth.
8. n. A plumose part or formation, as of the gill of a crustacean or a mollusk.
9. To dress the plumage of, as a bird; preen.
10. To strip off the plumage of, as a bird; pluck.
11. To adorn with feathers or plumes; feather; set as a plume; hence, to decorate or adorn (the person) in any way.
12. To pride; boast: used reflexively: as, to plume one's self on one's skill.

Wiktionary

1. n. A feather of a bird, especially a large or showy one.
2. n. The furry tail of certain dog breeds that stand erect or curl over their backs (eg Samoyed, Malteagle)
3. n. A cluster of feathers worn as an ornament, especially on a helmet.
4. n. An upward spray of water or mist.
5. n. geology An upwelling of molten material from the Earth's mantle.
6. n. astronomy An arc of glowing material erupting from the surface of a star.
7. v. intransitive To preen and arrange feathers.
8. v. intransitive To congratulate oneself proudly.
9. v. To form a plume
10. v. To write; to pen.

GNU Webster's 1913

1. n. A feather; esp., a soft, downy feather, or a long, conspicuous, or handsome feather.
2. n. (Zoöl.) An ornamental tuft of feathers.
3. n. A feather, or group of feathers, worn as an ornament; a waving ornament of hair, or other material resembling feathers.
4. n. A token of honor or prowess; that on which one prides himself; a prize or reward.
5. n. (Bot.) A large and flexible panicle of inflorescence resembling a feather, such as is seen in certain large ornamental grasses.
6. v. To pick and adjust the plumes or feathers of; to dress or prink.
7. v. obsolete To strip of feathers; to pluck; to strip; to pillage; also, to peel.
8. v. To adorn with feathers or plumes.
9. v. To pride; to vaunt; to boast; -- used reflexively.

WordNet 3.0

1. v. be proud of
2. v. clean with one's bill
3. v. rip off; ask an unreasonable price
4. v. dress or groom with elaborate care
5. v. deck with a plume
6. n. anything that resembles a feather in shape or lightness
7. v. form a plume
8. n. the light horny waterproof structure forming the external covering of birds
9. n. a feather or cluster of feathers worn as an ornament