needed vs necessary when to useとは 意味・読み方・使い方

require as useful, just, or proper

a necessary commodity for which demand is constant

more than is needed, desired, or required

something that can be relied on when needed

to happen to have something on hand when it is in need

be what is needed or be good enough for what is required

be of help, as in a particular situation of need

require as a necessary antecedent or precondition

the quality of being at hand when needed

something that can be used freely, whenever necessary

not needed; unnecessary

goods required to be used for a certain purpose

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

something that will be available when needed

in time of need―in case of need―in case of emergency

of something, the condition of being either necessary or unnecessary

the quality of not being available when needed

be used or required for

of something to be finished just in time

more than is needed

in case of emergency―in case of need

required or under orders

in case of need [danger, emergency]

when the need arises

They do not work unless they are pressed by necessity.

They do not work unless they are pressed by necessity―except under the pressure of necessity.

using the minimum of time or resources necessary for effectiveness

a supplementary pump available if needed

something desired as a necessity

give something useful or necessary to