To drink little by little; take (a liquid) into the mouth in small quantities; imbibe a mouthful at a time.To take in gradually by some process analogous to drinking; receive or obtain by sucking, inhaling, absorbing, or the like.To drink from by sips.To take a sip or sips.n. The act of sipping, or drinking by small quantities, as a liquid.n. A very small draught; a taste (of a liquid).n. Drink; sup.