need

the psychological feature that arouses an organism to action toward a desired goal; the reason for the action; that which gives purpose and direction to behavior

we did not understand his motivation

he acted with the best of motives

anything that is necessary but lacking

he had sufficient means to meet his simple needs

I tried to supply his wants

a condition requiring relief

she satisfied his need for affection

God has no need of men to accomplish His work

a state of extreme poverty or destitution

their indigence appalled him

a general state of need exists among the homeless

have need of

This piano wants the attention of a competent tuner

have or feel a need for

always needing friends and money

require as useful, just, or proper

It takes nerve to do what she did

success usually requires hard work