shit

American Heritage® Dictionary of the English Language, Fourth Edition

1. v. To defecate.
2. v. To defecate in.
3. v. To tease or try to deceive.
4. n. Excrement.
5. n. The act or an instance of defecating.
6. n. Diarrhea. Used with the.
7. n. Something considered disgusting, of poor quality, foolish, or otherwise totally unacceptable.
8. n. A mean or contemptible person.
9. n. A narcotic or intoxicant, such as marijuana or heroin.
10. n. Things; items.
11. n. Foolish, deceitful, or boastful language.
12. n. Insolent talk or behavior.
13. n. Trouble or difficulty.
14. n. A small or worthless amount: He doesn't know shit.
15. interj. Used to express surprise, anger, or extreme displeasure.
16. shit on To treat with malice or extreme disrespect.
17. idiom. get (one's) shit together To get organized; put one's affairs or possessions in order.
18. idiom. give a shit To care the least bit.
19. idiom. no shit Used to express disbelief.
20. idiom. no shit Used to express contemptuous acknowledgment of the obvious.
21. idiom. bricks To become extremely worried or frightened.
22. idiom. up shit creek (without a paddle) In dire circumstances with no hope of help.
23. idiom. when the shit hits the fan When the situation goes awry; when trouble starts.

Wiktionary

1. n. uncountable, vulgar, colloquial Solid excretory product evacuated from the bowels; feces.
2. n. countable, vulgar, colloquial, plural, definite (the shits) diarrhea.
3. n. countable, vulgar An instance of defecation.
4. n. uncountable, vulgar, colloquial Rubbish; worthless matter.
5. n. uncountable, vulgar, colloquial Stuff, things.
6. n. uncountable, vulgar, colloquial, definite (the shit) The best of its kind.
7. n. uncountable, vulgar, colloquial Nonsense; bullshit.
8. n. countable, vulgar, colloquial A nasty, despicable person, used particularly of men.
9. n. uncountable, vulgar, colloquial (in negations) Anything.
10. n. uncountable, vulgar, colloquial A problem or difficult situation.
11. n. uncountable, vulgar, colloquial A strong rebuke.
12. n. uncountable, vulgar, colloquial any recreational drug, usually cannabis.
13. adj. vulgar, colloquial Of poor quality; worthless.
14. adj. vulgar, colloquial Nasty; despicable.
15. v. intransitive, vulgar, colloquial To defecate.
16. v. transitive, vulgar, colloquial To excrete (something) through the anus.
17. v. transitive, vulgar, colloquial To fool or try to fool someone; to be deceitful.
18. v. transitive, vulgar, colloquial, Australia To annoy.
19. interj. vulgar Expression of worry, failure, shock, etc., often at something seen for the first time or remembered immediately before using this term.
20. interj. vulgar To show displeasure or surprise.

WordNet 3.0

1. n. obscene words for unacceptable behavior
2. v. have a bowel movement
3. v. give away information about somebody
4. n. obscene terms for feces
5. n. insulting terms of address for people who are stupid or irritating or ridiculous
6. n. something of little value
7. n. a coarse term for defecation
8. n. a small worthless amount