(linguistics) An n-gram consisting of four items from a sequence

(dated) A nail 1.5 inches (3.8 centimeters) in length.

Alternative form of fourche (“forked”)

A method of manufacturing flat glass in which the glass is drawn against gravity in an upward direction.

(anthropology) A category (a gender), present in societies which recognize four or more genders, which is neither cis male nor cis female; often, such societies consider trans men to constitute a third gender and trans women to constitute a fourth gender, or vice versa.

plural of fourgram

The state or quality of being fourhanded; having or using four hands.

With four hands; in a fourhanded manner.

plural of fourfold

present participle of fourfold