Akademik

need
v. & n.
—v.
1 tr. stand in want of; require (needs a new coat).
2 tr. (foll. by to + infin.; 3rd sing. present neg. or interrog. need without to) be under the necessity or obligation (it needs to be done carefully; he need not come; need you ask?).
3 intr. archaic be necessary.
—n.
1 a a want or requirement (my needs are few; the need for greater freedom). b a thing wanted (my greatest need is a car).
2 circumstances requiring some course of action; necessity (there is no need to worry; if need arise).
3 destitution; poverty.
4 a crisis; an emergency (failed them in their need).
Phrases and idioms:
at need in time of need. had need archaic ought to (had need remember). have need of require; want. have need to require to (has need to be warned). in need requiring help. in need of requiring. need not have did not need to (but did).
Etymology: OE neodian, ned f. Gmc

Useful english dictionary. 2012.