To grunt; to growl; to snarl; to murmur.

Alternative spelling of groyne

A demographic grouping based on age.

Originally, the point on the land or water surface below which a nuclear bomb detonates in the air; now also the point on such a surface at or above the detonation.

(literally) To begin digging in the earth at the start of a new construction, or, originally, for cultivation. / (idiomatic) To initiate a new venture, or to advance beyond previous achievements.

(group theory) The projective general linear group mathbf PGL(2,ℂ): the group of Möbius transformations on the Riemann sphere.

Used other than figuratively or idiomatically: see group, theory; a theory about (particular kinds of) groups.

A climbing vine, Apios americana, of eastern North America, having fragrant brownish flowers and small edible tubers. / Any similar plant having underground tubers.

A complaint, a grumble, a fit of ill-humor. / One who is grumpy or irritable.

(intransitive) To be grumpy or irritable; to complain.