Trim; compact; especially, protected from the weather; tight; comfortable.Fitting close, but not too close; of just the size to accommodate the person or thing contained: as, a snug coat; a snug fit.Lying close; closely, securely, and comfortably placed or circumstanced: as, the baby lay snug in its cradle.Close-concealed; not exposed to notice.Cozy; agreeable owing to exclusion of disagreeable circumstances and persons; also, loosely, agreeable in general.n. In machinery, a projection or abutment which holds firmly or binds by a wedge-like action another piece in contact with it, or which limits the motion of a part in any direction.n. In a steam-engine, one of the catches on the eccentric pulley and intermediate shaft, by means of which the motion of the shaft is transmitted through the eccentric to the slide-valves.Snugly.To move so as to lie close; snuggle: often with up and to: as, a child snugs (up) to its bedfellow; also, to move so as to be close.To make smooth and compact; in rope-manuf., to finish (rope) by rubbing down the fuzzy projecting fibers. Also slick and finish.To put in a snug position; place snugly; bring or move close; snuggle: often reflexive.