weed

American Heritage® Dictionary of the English Language, Fourth Edition

1. n. A plant considered undesirable, unattractive, or troublesome, especially one growing where it is not wanted, as in a garden.
2. n. Rank growth of such plants.
3. n. A water plant, especially seaweed.
4. n. The leaves or stems of a plant as distinguished from the seeds: dill weed.
5. n. Something useless, detrimental, or worthless, especially an animal unfit for breeding.
6. n. Slang Tobacco.
7. n. Slang A cigarette.
8. n. Slang Marijuana.
9. v. To clear of weeds.
10. v. To remove (weeds). Often used with out: weed out dandelions.
11. v. To eliminate as unsuitable or unwanted. Often used with out: weed out unqualified applicants.
12. v. To remove weeds.
13. n. A token of mourning, as a black band worn on a man's hat or sleeve.
14. n. The black mourning clothes of a widow.
15. n. An article of clothing; a garment. Often used in the plural.

Century Dictionary and Cyclopedia

1. n. The vegetative parts of the cotton-plant as opposed to the flowers and fruit.
2. n. The mad-dog skull-cap or madweed, Scutellaria lateriflora.
3. n. Any one of those herbaceous plants which are useless and without special beauty, or especially which are positively troublesome. The application of this general term is somewhat relative. Handsome but pernicious plants, as the oxeye daisy, cone-flower, and the purple cow-wheat of Europe (Melampyrum aruense), are weeds to the agriculturist, flowers to the esthetic. So also plants that are cultivated for use or beauty, as grasses, hemp, carrot, parsnip, morning-glory, become weeds when they spring up where they are not wanted. The exotics of cool countries are sometimes weeds in the tropics.
4. n. A sorry, worthless animal unfit for the breeding of stock; especially, a leggy, loose-bodied horse; a race-horse having the appearance but wanting the other qualities of a thorough bred.
5. n. A cigar; with the definite article, tobacco.
6. To free from weeds or noxious plants.
7. To take away, as noxious plants; remove what is injurious, offensive, or unseemly; extirpate.
8. To free from anything hurtful or offensive.
9. To root up and remove weeds, or anything resembling weeds.
10. A reduced form of weeded, past participle of weed.
11. n. A garment of any sort, especially an outer garment; hence, garments in general, especially the whole costume worn at any one time: now commonly in the plural, and chiefly in the phrase widows' weeds. See widow.
12. n. A general name for any sudden illness from cold or relapse, usually accompanied by febrile symptoms, taken by women after confinement or during nursing, especially milk-fever or inflammation of the breast.
13. n. Lymphangitis in the horse, characterized by fever and temporary swelling of the limbs. It appears usually after a period of inactivity.
14. n. A heavy weight.

Wiktionary

1. n. countable Any plant growing in cultivated ground to the injury of the crop or desired vegetation, or to the disfigurement of the place; an unsightly, useless, or injurious plant.
2. n. countable A species of plant considered harmful to the environment or regarded as a nuisance.
3. n. Short for duckweed
4. n. uncountable, slang Marijuana.
5. n. obsolete, uncountable, slang Tobacco.
6. n. obsolete, countable A cigar.
7. n. obsolete, countable A horse unfit to breed from.
8. n. countable, UK, informal A puny person; one who has with little physical strength.
9. n. countable, Scotland A sudden illness or relapse, often attended with fever, which attacks women in childbed.
10. n. uncountable, archaic or obsolete Underbrush; low shrubs.
11. n. countable, figuratively Something unprofitable or troublesome; anything useless.
12. v. To remove unwanted vegetation from a cultivated area.
13. n. archaic A garment or piece of clothing.
14. n. archaic Clothing collectively; clothes, dress.
15. n. archaic widow's weeds Female mourning apparel
16. v. Simple past tense and past participle of wee.

GNU Webster's 1913

1. n. A garment; clothing; especially, an upper or outer garment.
2. n. An article of dress worn in token of grief; a mourning garment or badge; ; especially, in the plural, mourning garb, as of a woman.
3. n. Scot. A sudden illness or relapse, often attended with fever, which attacks women in childbed.
4. n. Obs. or Archaic Underbrush; low shrubs.
5. n. Any plant growing in cultivated ground to the injury of the crop or desired vegetation, or to the disfigurement of the place; an unsightly, useless, or injurious plant.
6. n. Fig.: Something unprofitable or troublesome; anything useless.
7. n. (Stock Breeding) An animal unfit to breed from.
8. n. Slang Tobacco, or a cigar.
9. v. To free from noxious plants; to clear of weeds
10. v. To take away, as noxious plants; to remove, as something hurtful; to extirpate; -- commonly used with out.
11. v. To free from anything hurtful or offensive.
12. v. (Stock Breeding) To reject as unfit for breeding purposes.

WordNet 3.0

1. n. street names for marijuana
2. v. clear of weeds
3. n. any plant that crowds out cultivated plants
4. n. a black band worn by a man (on the arm or hat) as a sign of mourning