Arm

arma

(weapon)

armas

(heraldic bearings)

braço

(upper appendage from shoulder to wrist)

braço

(part of object)

braço

(bay or inlet)

braço

(part of a chromosome)

insígnias

(heraldic bearings)

perna

(part of object)

armar

(to supply with armour or weapons)

armar

(to prepare for action)