Definition of "action"
action
/ˈæk.ʃən/
noun
countable and uncountable, plural actions
(slang, typically with a quantifier) Sexual intercourse.
(military) Combat.
(mathematics) A mapping from a pairing of mathematical objects to one of them, respecting their individual structures. The pairing is typically a Cartesian product or a tensor product. The object that is not part of the output is said to act on the other object. In any given context, action is used as an abbreviation for a more fully named notion, like group action or left group action.
interjection
Demanding or signifying the start of something, usually a performance.
adjective
comparative more action, superlative most action
(Manglish) arrogant