sneak · verb /sniːk/
sneak into/out/around, etc.
C2 to go somewhere quietly because you do not want anyone to hear you
Dictionary example:
I sneaked into his bedroom while he was asleep.
Learner example:
He was going to make a photocopy first and then, maybe he could sneak out [of] the office. (Certificate of Proficiency in English; C2; Swedish)
sneak sth into/out of/through, etc.
C2 to take something somewhere without anyone seeing you
Dictionary example:
We tried to sneak the dog into the hotel.
Learner example:
At these parties some of us sometimes [used to] sneak in some alcoholic drinks like vodka or whiskey. (Certificate of Proficiency in English; C2; Portuguese)
sneak a look/peek at sb/sth
C2 to look at someone or something quickly and secretly
Dictionary example:
I sneaked a look at the answers.
