To creep or steal (away or about) privately; to come or go meanly, as a person afraid or ashamed to be seen; as, to sneak away from company.
- To go or move in a quiet, stealthy way.
- To behave in a cowardly or servile manner.
- To move, give, take, or put in a quiet, stealthy manner: sneak candy into one's mouth; sneaked a look at the grade sheet.
- A person regarded as stealthy, cowardly, or underhanded.
- An instance of sneaking; a quiet, stealthy movement.
- Informal A sneaker.
- Carried out in a clandestine manner: sneak preparations for war.
- Perpetrated without warning: a sneak attack.