1.To affect or influence by means of laughter or ridicule. "Will you laugh me asleep, for I am very heavy?" "I shall laugh myself to death."
2.To express by, or utter with, laughter; with out. "From his deep chest laughs out a loud applause."
To laugh away. (a)To drive away by laughter; as, to laugh away regret.
(b)To waste in hilarity. "Pompey doth this day laugh away his fortune."
To laugh down. (a)To cause to cease or desist by laughter; as, to laugh down a speaker.
(b)To cause to be given up on account of ridicule; as, to laugh down a reform.