英和和英

required reading

an indispensable dictionary

revision required

to be necessary

Do I need a tie?

Is required

Is a signature necessary?

Programmer wanted

need the spur

to meet a need―meet a want

to meet a need

have need of

of something, to be needed

I need a police car.

approval required

It's necessary.

to meet the need―fill a need―minister to one's needs

to urge （on one） the necessity of something―impress upon one the importance of something

clamant needs

need an eye

You'll need ten pair(s) of socks.

do the necessary

require clearer statement

In the event that a manual is required

When a manual is needed

It is necessary.

a mandatory clause

a required subject

Do you need a manual?

effective demand