使用

to use / to employ / to apply / to make use of

to make / to cause / to enable / to use / to employ / to send / to instruct sb to do sth / envoy / messenger

to use / to employ / to have to / to eat or drink / expense or outlay / usefulness / hence / therefore

user

usage rights

volume of use / usage amount

terms of use

user agent

to reuse

recycle / to use in cyclic order

no first use (policy for nuclear weapons) / NFU

usable value

usage (i.e. extent of use)