noun An intimate physical embrace, typically while lying (or sitting): a snuggle, an instance of lying together snugly, as one might with a partner (more intimate than a hug, and typically of longer duration).
noun An affectionate embrace, a hug, such as is given to family members and close friends (less intimate than a snuggle, and typically of shorter duration).
Give me a cuddle, Paul; it'll cheer you up.
verb To lie together snugly (with someone), in an intimate physical embrace; to snuggle.
The young lovers cuddled on the couch.
verb To embrace (someone) affectionately; to hug (someone) closely.
verb To cradle (e.g. a baby) in one's arms so as to give comfort, warmth.