dare

American Heritage® Dictionary of the English Language, Fourth Edition

1. v. To have the courage required for: The gymnast dared a breathtakingly difficult move.
2. v. To challenge (someone) to do something requiring boldness: They dared me to dive off the high board.
3. v. To confront or oppose boldly. See Synonyms at defy.
4. v. To be courageous or bold enough to do or try something: Go ahead and dive if you dare.
5. v. To be courageous or bold enough to: I dare not say. How dare she go?
6. n. An act of daring; a challenge.

Century Dictionary and Cyclopedia

1. To be bold enough (to do something); have courage, strength of mind, or hardihood (to undertake some action or project); not to be afraid; venture: followed by an infinitive (with or without to) as object, or sometimes, by ellipsis, used absolutely.
2. [Originally and still often used in the third person of the present tense without a personal termination, and in such case always followed by the infinitive without to: as, he dare not do it.
3. To venture on; attempt boldly to perform.
4. To challenge; provoke to action, especially by asserting or implying that one lacks courage to accept the challenge; defy: as, to dare a man to fight.
5. To arouse; rouse.
6. n. The quality of being daring; venturesomeness; boldness; dash; spirit.
7. n. A challenge; defiance.
8. To be in fear; tremble with fear; be stupefied or dazed with fear. Specifically
9. To lie still in fear; lurk in dread; especially, lie or squat close to the ground, like a frightened bird or hare; look anxiously around, as such a lurking creature.
10. To droop; languish.
11. To strike with fear; terrify; daunt; dismay.
12. To terrify and catch (larks), as by means of a mirror or a piece of red cloth, or by walking round with a hawk on the fist where they are crouching, and then throwing a net over them.
13. n. A mirror for daring larks.
14. n. Same as dace, 1.
15. n. A Middle English form of deer.

Wiktionary

1. v. intransitive To have enough courage (to do something).
2. v. transitive To defy or challenge (someone to do something)
3. v. transitive To have enough courage to meet or do something, go somewhere, etc.; to face up to
4. n. A challenge to prove courage.
5. n. A small fish, the dace.

GNU Webster's 1913

1. v. To have adequate or sufficient courage for any purpose; to be bold or venturesome; not to be afraid; to venture.
2. v. To have courage for; to attempt courageously; to venture to do or to undertake.
3. v. To challenge; to provoke; to defy.
4. n. rare The quality of daring; venturesomeness; boldness; dash.
5. n. Defiance; challenge.
6. v. obsolete To lurk; to lie hid.
7. v. obsolete To terrify; to daunt.
8. n. (Zoöl.) A small fish; the dace.

WordNet 3.0

1. v. to be courageous enough to try or do something
2. v. challenge.
3. n. a challenge to do something dangerous or foolhardy
4. v. take upon oneself; act presumptuously, without permission