B1[I or T]to bend something, especially paper or cloth, so that one part of it lies on the other part, or to be able to be bent in this way: I folded the letter (in half) and put it in an envelope.He had a neatly folded handkerchief in his jacket pocket.Will you help me to fold (up) the sheets?The table folds up when not in use.Making things more or less smooth or straight›[T]to wrap: She folded her baby in a blanket.He folded his arms around her.Enclosing, surrounding and immersingfold your arms›to bring your arms close to your chest and hold them togetherMaking things more or less smooth or straight›[T]to move a part of your body into a position where it is close to your body: She sat with her legs folded under her.Making things more or less smooth or straight
You are looking at an entry to do with Enclosing, surrounding and immersing, but you might be interested in these topics from the Including and excluding topic area: