Definitions

1. noun

a person who secretly and usually unobtrusively observes or investigates someone or something, especially for suspicious or illicit activity.

“The police were looking for a snoop who had been stealing packages from the neighbors.”

2. verb

to secretly or stealthily observe or investigate someone or something, especially for suspicious or illicit activity.

“Someone has been snooping around the office and stealing confidential documents.”

3. verb

to look or search through something in a casual or curious way.

“I was snooping through the attic and found an old trunk.”