[ɑːm], (Noun)

Definitions:
- each of the two upper limbs of the human body from the shoulder to the hand
(e.g: she held the baby in her arms)

- a thing comparable to an arm in form or function, typically something that projects from a larger structure
(e.g: cables will secure the boom to steel arms installed near the top of the tower)

- a branch or division of a company or organization
(e.g: the political arm of the separatist group)

- each of the lines enclosing an angle


Phrases:
- arm in arm
- as long as one's arm
- at arm's length
- beyond arm's reach
- cost an arm and a leg
- give one's right arm
- put the arm on
- the long arm of the law
- under one's arm
- with open arms
- within arm's reach

Origin:
Old English arm, earm, of Germanic origin; related to Dutch arm and German Arm

[ɑːm], (Verb)

Definitions:
- supply or provide with weapons
(e.g: the security forces are armed with automatic rifles)

- activate the fuse of (a bomb, missile, or other explosive device) so that it is ready to explode
(e.g: the bomb would be quite safe until it was armed)


Phrases:

Origin:
Middle English: from Old French armer (verb), from Latin armare, from arma ‘armour, arms’