verb

• (transitive) To work and press into a mass, usually with the hands; especially, to work, as by repeated pressure with the knuckles, into a well mixed mass, the materials of bread, cake, etc.
  "Knead the dough by pressing down on it with the heels of both your palms and pushing it forward to stretch it, then pulling it back toward you..."
• (transitive, figuratively) To treat or form as if by kneading; to beat.
  "I will knead him: I'll make him supple."
• (intransitive, felinology) Of cats, to make an alternating pressing motion with the two front paws.
  "Cats knead with their paws when happy, just as they kneaded when feeding from their mothers as kittens."
• (transitive) To mix thoroughly; form into a homogeneous compound.