verb

1. To have an absolute requirement for.

   “Living things need water to survive.”

2. To want strongly; to feel that one must have something.

   “After ten days of hiking, I needed a shower and a shave.”

3. (modal verb) To be obliged or required (to do something).

   “You need not go if you don't want to.”

Synonyms: desire, want, will, wish, would like, be, lack, without

adjective

1. Necessary; being required.

   “A much-needed rest.”