damn

American Heritage® Dictionary of the English Language, Fourth Edition

1. v. To pronounce an adverse judgment upon. See Synonyms at condemn.
2. v. To bring about the failure of; ruin.
3. v. To condemn as harmful, illegal, or immoral: a cleric who damned gambling and strong drink.
4. v. To condemn to everlasting punishment or a similar fate; doom.
5. v. To swear at.
6. v. To swear; curse.
7. interj. Used to express anger, irritation, contempt, or disappointment.
8. n. The saying of "damn” as a curse.
9. n. Informal The least valuable bit; a jot: not worth a damn.
10. adv. Damned.
11. idiom. damn well Without any doubt; positively: I am damn well going to file charges against him.

Century Dictionary and Cyclopedia

1. To condemn; affirm to be guilty, or worthy of punishment; sentence judicially.
2. To assign to a certain fate; doom.
3. Specifically In theology, to doom to punishment in a future state; condemn to hell. [For this word, as used in this sense in the authorized version of the Bible, the word condemn has been substituted in the revised version. See damnation.]
4. Hence In the imperative, used profanely in emphatic objurgation or contempt of the object, and more vulgarly in certain arbitrary phrases (as damn your or his eyes!) in general reprehension or defiance of a person.
5. To address with the objurgation “damn!”; swear at.
6. To adjudge or pronounce to be bad; condemn as a failure; hence, to ruin by expressed disapproval: as, to damn a play.
7. To use the objurgation “damn!”; swear.
8. n. The verb damn used as a profane word; a curse; an oath.

Wiktionary

1. v. To condemn to hell.
2. v. To put out of favor; to ruin; to label negatively.
3. v. To condemn as unfit, harmful, of poor quality, unsuccessful, invalid, immoral or illegal.
4. v. To curse; put a curse upon.
5. adj. Generic intensifier.
6. adv. awfully, extremely
7. interj. Used to express anger, irritation, disappointment, annoyance, contempt, etc. See also dammit.
8. n. The use of "damn" as a curse.
9. n. A small, negligible quantity, being of little value.
10. n. The smallest amount of concern or consideration.

GNU Webster's 1913

1. v. To condemn; to declare guilty; to doom; to adjudge to punishment; to sentence; to censure.
2. v. To doom to punishment in the future world; to consign to perdition; to curse.
3. v. To condemn as bad or displeasing, by open expression, as by denuciation, hissing, hooting, etc.
4. v. To invoke damnation; to curse.

WordNet 3.0

1. n. something of little value
2. adv. extremely.
3. adj. used as expletives
4. adj. expletives used informally as intensifiers
5. v. wish harm upon; invoke evil upon