I was recently writing and found out that i couldn't use just one word to describe 4 people. For Example there is "Duo" for two people and "Trio" for three people. What terms can be used to describe more numbers?
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3Quartet, quintet, sextet, septet, octet, nonet and dectet (used mainly for musical ensembles). – michael.hor257k Mar 28 '17 at 11:23
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@michael.hor257k Is there a term for these collective numbers, like ordinal and cardinal? I didn't find one. – Davo Mar 28 '17 at 12:44
See Quartet at Oxford dictionary, defined as
A set of four people or things.
There is also tetrad defined by Oxford dictionary as
A group or set of four
But I'm afraid tetrad and quartet both are pretty set in ways they are used. Please refer other dictionaries as well, such as Merriam Webster.
You can use foursome to describe a group of four people, although the term is normally used in the context of a social gathering. The group does not necessarily have to be mixed-sex.
foursome
A group of four people meeting for a social activity, such as playing a game or having a meal:Why don't we invite Caroline and Mark and make up a foursome?
Cambridge Dictionary
