英和和英

a prerequisite

fulfill requirements

to suit the exigency

make according to requirements

be surplus to requirements

a prerequisite subject

rise to the requirements

a necessary condition

the degree of necessity

an exigency

to a vital degree

a mandatory clause

the condition of being essential or indispensable

to be necessary

urgent necessity

grim necessity

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

to meet a need―meet a want

to meet a need

necessary condition for approval

absolutely essential

of necessity―needs―perforce

have need of

state of making necessary arrangements beforehand

Urgent request

the essential factor

required reading

clamant needs

require as a necessary antecedent or precondition

the act of requiring