Definitions

1. verb

to supply or equip (an army, fleet, etc.) with arms or ammunition again

“The government decided to rearm the military in preparation for a potential threat.”

2. verb

to equip or supply (a vehicle) with fuel or ammunition again

“The pilot had to rearm the plane before embarking on the long flight.”

3. noun

the act of supplying or equipping an army, fleet, etc. with arms or ammunition again

“The rearm of the military was a major undertaking that required careful planning.”

4. verb

to replace or repair a part of something, especially a machine

“The mechanic had to rearm the engine to get it running properly.”