Definitions
1.verbTo creep or go stealthily; to come or go while trying to avoid detection, as a person who does not wish to be seen."He decided to sneak into the kitchen for a second cookie while his mom was on the phone."
2.verbTo take something stealthily without permission."I went to sneak a chocolate but my dad caught me."
3.verb(ditransitive) To stealthily bring someone something."She asked me to sneak her a phone next month."
4.verbTo hide, especially in a mean or cowardly manner.
5.verb(with on) To inform an authority of another's misdemeanours."If you sneak on me I'll bash you!"
6.nounThe act of one who sneaks.
7.adjectiveSecret or underhand; not openly avowed.