noun

• (countable) A pigeon, especially one smaller in size and white-colored; a bird (often arbitrarily called either a pigeon or a dove or both) of more than 300 species of the family Columbidae.
  "Dove's brains have been prepared by chefs for amorous expectations."
• (countable, politics) A person favouring conciliation and negotiation rather than conflict.
• (countable) Term of endearment for one regarded as pure and gentle.
  "O my dove, […] let me hear thy voice."
• (slang, countable) Ellipsis of love dove (“tablet of the drug ecstasy”).

verb

• (chiefly Canada, US; dialectal in the UK) simple past of dive
  "2007: Bob Harris, Who Hates Whom: Well-Armed Fanatics, Intractable Conflicts, and Various Things Blowing up: A Woefully Incomplete Guide, §: Africa, Liberia, Sierra Leone, and Côte d’Ivoire, page 80, ¶ 4 (first edition; Three Rivers Press; →ISBN When coffee and cocoa prices unexpectedly dove, Côte d’Ivoire quickly went from Africa’s rich kid to crippling debtitude."
• (nonstandard) past participle of dive