(idiomatic) Something not wanted by someone, who is already burdened.

Something good does not need to be advertised.

Alternative form of have several seats

Indicating that one's close associates prove more adversarial than one's opponents.

not (needed) at all

There is sometimes no choice but to do some specific thing.

(of the giving of information) remaining secret or hidden until it is needed to be known (by a particular party).

Indicates that the speaker needs a person to guide him or her. / Indicates that the speaker needs a book or document to guide him or her.

plural of number needed to harm

The number of people, statistically, who must be exposed to something in order for one of them to experience an adverse effect.