英和和英

the state of being useful

to be useful―of use―serviceable―of service―good for something―to come in useful―serve one's purpose―prove of service―render service―stand one in stead

effectiveness of matter (be useful)

to begin to be useful

the degree of usefulness of a thing or a person

to put something to some use

to serve

to prove useful―prove of service―stand one in stead

be of service

to put anything in requisition―call anything into requisition―（ご用立ての意味なら）―place anything at one's service―place anything at one's disposal

in a helpful manner

to drudge

effectiveness of matter (be practical, advantageous or helpful

the quality of being useful and convenient

a means of serving

to answer the purpose―serve one's turn―（形容詞をもって言い表せば）―to be useful―serviceable―helpful―available―good for something.

of something, to be of benefit

a thing that is useful

be of use to, be useful to

to be useful―of use―serviceable―of service―good for something

a useful way of using something

potentially useful

useful teaching materials

the state of being well-suited for a role

having a useful function

used until no longer useful