• synonyms


See more synonyms on Thesaurus.com
  1. the parts of a bird's jaws that are covered with a horny or leathery sheath; beak.
  2. the visor of a cap or other head covering.
  3. a beaklike promontory or headland.
verb (used without object)
  1. to join bills or beaks, as doves.
  1. bill and coo, to kiss or fondle and whisper endearments, as lovers: My sister and her boyfriend were billing and cooing on the front porch.

Origin of bill2

before 1000; Middle English bile, bille, Old English bile beak, trunk; akin to bill3
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
British Dictionary definitions for bill and coo


  1. money owed for goods or services suppliedan electricity bill
  2. a written or printed account or statement of money owed
  3. mainly British such an account for food and drink in a restaurant, hotel, etcUsual US and Canadian word: check
  4. any printed or written list of items, events, etc, such as a theatre programmewho's on the bill tonight?
  5. fit the bill or fill the bill informal to serve or perform adequately
  6. a statute in draft, before it becomes law
  7. a printed notice or advertisement; poster
  8. US and Canadian a piece of paper money; note
  9. an obsolete name for promissory note
  10. law See bill of indictment
  11. See bill of exchange
  12. See bill of fare
  13. archaic any document
verb (tr)
  1. to send or present an account for payment to (a person)
  2. to enter (items, goods, etc) on an account or statement
  3. to advertise by posters
  4. to schedule as a future programmethe play is billed for next week

Word Origin

C14: from Anglo-Latin billa, alteration of Late Latin bulla document, bull ³


  1. the mouthpart of a bird, consisting of projecting jaws covered with a horny sheath; beak. It varies in shape and size according to the type of food eaten and may also be used as a weapon
  2. any beaklike mouthpart in other animals
  3. a narrow promontoryPortland Bill
  4. nautical the pointed tip of the fluke of an anchor
verb (intr)
  1. (of birds, esp doves) to touch bills together
  2. (of lovers) to kiss and whisper amorously

Word Origin

Old English bile; related to bill bill ³


  1. a pike or halberd with a narrow hooked blade
  2. short for billhook

Word Origin

Old English bill sword, related to Old Norse bīldr instrument used in blood-letting, Old High German bil pickaxe


  1. ornithol another word for boom 1 (def. 4)

Word Origin

C18: from dialect beel bell ² (vb)
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for bill and coo



"written statement," mid-14c., from Anglo-French bille, Anglo-Latin billa "list," from Medieval Latin bulla "decree, seal, sealed document," in classical Latin "bubble, boss, stud, amulet for the neck" (hence "seal;" see bull (n.2)). Sense of "account, invoice" first recorded c.1400; that of "order to pay" (technically bill of exchange) is from 1570s; that of "paper money" is from 1660s. Meaning "draft of an act of Parliament" is from 1510s.



"bird's beak," Old English bill "bill, bird's beak," related to bill, a poetic word for a kind of sword (especially one with a hooked blade), from a common Germanic word for cutting or chopping weapons (cf. Old High German bihal, Old Norse bilda "hatchet," Old Saxon bil "sword"), from PIE root *bheie- "to cut, to strike" (cf. Armenian bir "cudgel," Greek phitos "block of wood," Old Church Slavonic biti "to strike," Old Irish biail "ax"). Used also in Middle English of beak-like projections of land (e.g. Portland Bill).



"to send someone a bill of charge," 1864, from bill (n.1). Related: Billed; billing.



ancient weapon, Old English bill "sword (especially one with a hooked blade), chopping tool," common Germanic (cf. Old Saxon bil "sword," Middle Dutch bile, Dutch bijl, Old High German bihal, German Beil, Old Norse bilda "hatchet." See bill (n.2).

Online Etymology Dictionary, © 2010 Douglas Harper

Idioms and Phrases with bill and coo

bill and coo

The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.

  • About
  • Cookies, Terms, & Privacy
© 2018 Dictionary.com, LLC.