verb

1. To 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. To take something stealthily without permission.

   “I went to sneak a chocolate but my dad caught me.”

3. (ditransitive) To stealthily bring someone something.

   “She asked me to sneak her a phone next month.”

Synonyms: grass, snitch, tell tales, skulk

noun

1. The act of one who sneaks.

adjective

1. Secret or underhand; not openly avowed.