1 one of the two long parts of your body with your hands at the end
I put my arm around his shoulders.
in someone’s arms: She was holding the baby in her arms.
under someone’s arm (=between the arm and the side of the body): Jim was carrying a parcel under his arm.
into someone’s arms: The children threw themselves into their grandmother’s arms.
fold/cross your arms (=put one arm on top of the other): She folded her arms across her chest.
take someone in your arms: He took her in his arms and kissed her.
Synonyms and related words