countˈback noun

1. A method for determining the winner of a sporting event when two competitors have an equal final score by taking into account their performance throughout the competition
2. Any of various similar techniques for determining an outcome by taking account of existing data

countˈdown noun

A descending count or counted check to a moment of happening regarded as zero, as in the firing of a rocket (see also count down below)

countˈer-caster noun (Shakespeare)

An arithmetician, reckoner

counting frame noun

A frame having rows of movable beads, used for elementary counting, an abacus

counting house or counting room noun

Formerly, a room in which a merchant, etc kept his accounts and transacted business

countˈline adjective and noun

(of) a confectionery bar made as an individual line (eg a filled or chocolate-covered combination bar) as distinct from moulded chocolate

count noun noun

A noun which, since it denotes an entity of which there can be one or more than one, is able to form a plural

count-out see n above.

count wheel noun

A wheel with notched edge controlling the stroke of a clock in sounding the hours

count down

To count in descending order to zero (see also countdown above)

count in (or out)

To include (or exclude) from an activity

count on

To rely on, depend on

count out

1. Of a meeting (esp of the House of Commons), to bring to an end by pointing out that a quorum is not present
2. (in children's games) to eliminate (players) by counting while repeating a rhyme (counting-out rhyme)
3. To judge (a boxer, wrestler, etc) defeated by counting the maximum allowable seconds in which to resume

keep count

To keep an accurate numerical record (of)

lose count

To fail to keep count (of)

out for the count

1. Unable to rise and resume the fight during the count (boxing)
2. In general, unconscious, or asleep