Definition of arm noun from the Oxford Advanced Learner's Dictionary arm noun /ɑːm/ /ɑːrm/ see also arms Idioms jump to other results part of body;Especially the part between the shoulder and the wrist How to use arm in a sentenceArm (n1) "upper limb of the human body," Old English earm, from ProtoGermanic *armaz (source also of Old Saxon, Danish, Swedish, Middle Dutch, German arm, Old Norse armr, Old Frisian erm), from PIE root *ar"to fit together" (source also of Sanskrit irmah "arm," Greek arthron "a joint," Latin armus "shoulder") Arm of the sea was in Old English Armtwister "powerful persuader" is from
Armband Meaning In The Cambridge English Dictionary
