To draw in a substance by creating a practical vacuum in the mouth, and as a result a difference in pressure.
be able to take in, as of liquids; "The sponge absorbs water well"
of infants
take in liquid by sucking
draw something in by or as if by a vacuum; "Mud was sucking at her feet"
attract by using an inexorable force, inducement, etc.: the current sucked him in"
the act of sucking
draw into the mouth by creating a practical vacuum in the mouth; "suck the poison from the place where the snake bit"; "suck on a straw"; "the baby sucked on the mother''s breast"
give suck to; "The wetnurse suckled the infant"; "You cannot nurse your baby in public in some places"
take in, also metaphorically; "The sponge absorbs water well"; "She drew strength from the minister''s words"
attract by using an inexorable force, inducement, etc.; "The current boom in the economy sucked many workers in from abroad"
draw into the mouth by creating a practical vacuum in the mouth
give suck to
take in, also metaphorically
draw something in by or as if by a vacuum
provide sexual gratification through oral stimulation
be inadequate or objectionable
attract by using an inexorable force, inducement, etc.