bill (n.1)

"written statement," late 14c., "formal document; formal plea or charge (in a court of law); personal letter," from Anglo-French bille, Anglo-Latin billa "a writing, a list, a seal," 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 "written statement detailing articles sold or services rendered by one person to another" is from c. 1400; that of "order addressed to one person to pay another" is from 1570s. Meaning "paper intended to give public notice of something, exhibited in a public place" is from late 15c. Sense of "paper money, bank-note" is from 1660s. Meaning "draft of a proposed statute presented to a legislature" is from 1510s.

bill (n.2)

"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 Proto-Germanic *bili-, a word for cutting or chopping weapons (see bill (n.3)). Used also in Middle English of beak-like projections of land (such as Portland Bill).

bill (v.1)

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

bill (n.3)

ancient weapon, Old English bill "sword (especially one with a hooked blade), chopping tool," from Proto-Germanic *bili-, a word for cutting or chopping weapons (compare Old Saxon bil "sword," Middle Dutch bile, Dutch bijl, Old High German bihal, German Beil, Old Norse bilda "hatchet"), possibly from PIE root *bheie- "to cut, to strike" (source also of Armenian bir "cudgel," Greek phitos "block of wood," Old Church Slavonic biti "to strike," Old Irish biail "ax").

bill (v.2)

"to stroke beaks," as doves do, hence, of lovers, "caress fondly," 1590s, from bill (n.2)). Paired with coo at least since 1764; Century Dictionary [1902] defines bill and coo (by 1768) as "to kiss and caress and talk nonsense, as lovers." Related: Billed; billing.

Definitions of bill
bill (n.)
a statute in draft before it becomes law;
they held a public hearing on the bill
Synonyms: measure
bill (n.)
an itemized statement of money owed for goods shipped or services rendered;
he paid his bill and left
Synonyms: account / invoice
bill (n.)
a piece of paper money (especially one issued by a central bank);
Synonyms: note / government note / bank bill / banker's bill / bank note / banknote / Federal Reserve note / greenback
bill (n.)
the entertainment offered at a public presentation;
bill (n.)
an advertisement (usually printed on a page or in a leaflet) intended for wide distribution;
bill (n.)
a sign posted in a public place as an advertisement;
Synonyms: poster / posting / placard / notice / card
bill (n.)
a list of particulars (as a playbill or bill of fare);
bill (n.)
a cutting tool with a sharp edge;
he used a bill to prune branches off of the tree
Synonyms: billhook
bill (n.)
a brim that projects to the front to shade the eyes;
he pulled down the bill of his cap and trudged ahead
Synonyms: peak / eyeshade / visor / vizor
bill (n.)
horny projecting mouth of a bird;
Synonyms: beak / neb / nib / pecker
bill (v.)
demand payment;
We were billed for 4 nights in the hotel, although we stayed only 3 nights
Synonyms: charge
bill (v.)
advertise especially by posters or placards;
He was billed as the greatest tenor since Caruso
bill (v.)
publicize or announce by placards;
Synonyms: placard