Noun

(en noun)

An action, state of mind, or object one has an obligation to perform for another, adopt toward another, or give to another.

* 1589 , (William Shakespeare), Henry IV, Part I , act 1, sc. 3,

Revenge the jeering and disdain'd contempt

Of this proud king, who studies day and night

To answer all the debt he owes to you

Even with the bloody payment of your deaths.

* 1850 , (Nathaniel Hawthorne), (The Scarlet Letter) , ch. 14,

This long debt of confidence, due from me to him, whose bane and ruin I have been, shall at length be paid.

The state or condition of owing something to another.

Money that one person or entity owes or is required to pay to another, generally as a result of a loan or other financial transaction.

* 1919 , (Upton Sinclair), Jimmie Higgins , ch. 15,

Bolsheviki had repudiated the four-billion-dollar debt which the government of the Tsar had contracted with the bankers.

* {{quote-magazine, date=2013-06-22, volume=407, issue=8841, page=70, magazine=(The Economist)

, title= Engineers of a different kind , passage=Private-equity nabobs bristle at being dubbed mere financiers. Piling debt onto companies’ balance-sheets is only a small part of what leveraged buy-outs are about, they insist. Improving the workings of the businesses they take over is just as core to their calling, if not more so. Much of their pleading is public-relations bluster.}}

(legal) An action at law to recover a certain specified sum of money alleged to be due.

(Burrill)

Noun

(wikipedia initialism) (en noun)

A term formed from the initial letter or letters of several words or parts of words, but which is itself pronounced letter by letter.

BBC is an initialism for British Broadcasting Corporation.