Meaning: If you left something behind, you forgot to bring it with you.Synonym: forget
- leave sth/sb behind When I got to the station I realised I'd left my credit cards behind, so I went back home to get them.
- leave sth/sb behind After we left the beach, someone asked where Bobby was. I did a u-turn and went back to the beach because we'd left him behind!
Sandra realised she'd left her passport behind, so she