|Origin:||Perhaps from Old English snican 'to creep'|
sneak1 past tense and past participle sneaked or snuck American English
to go somewhere secretly and quietly in order to avoid being seen or heard [= creep]
go secretly[intransitive always + adverb/preposition]
sneak in/out/away etc
They sneaked off without paying!
She snuck out of the house once her parents were asleep.
to hide something and take it somewhere or give it to someone secretly:
I snuck her a note.
sneak something through/past etc somebody/something
Douglas had sneaked his camera into the show.
to look at something quickly and secretly, especially something that you are not supposed to see:
He sneaked a look at her.
to quickly and secretly steal something unimportant or of little value
sneak something from somebody
We used to sneak cigarettes from Dad.
sneak on somebodyphrasal verb
A little brat named Oliver sneaked on me.
sneak upphrasal verb
sneak up on/behind etc
I wish you wouldn't sneak up on me like that!