Osculating means "to kiss" or "to touch lightly". Synonyms for osculating include brushing, caressing, grazing, nipping, pecking, smooching, smacking, and touching. These words all convey a sense of a gentle or playful contact, without necessarily implying a deep or lasting connection. Osculating can also be used in a more technical sense, to describe the point where two curves or surfaces come into contact. Synonyms for this usage include meeting, intersecting, touching, and converging. Regardless of the context, the word osculating always implies a brief and fleeting encounter, like the delicate flutter of butterfly wings.