s. gerekli, lüzumlu. He lacks the necessary skills for this job. (O, bu iş için gerekli yeteneklere sahip değil.)

Such as must be; impossible to be otherwise; not to be
avoided; inevitable.

Impossible to be otherwise, or to be dispensed with,
without preventing the attainment of a desired result; indispensable;
requiste; essential.

Acting from necessity or compulsion; involuntary; –
opposed to free; as, whether man is a necessary or a free agent is a
question much discussed.

A thing that is necessary or indispensable to some
purpose; something that one can not do without; a requisite; an
essential; – used chiefly in the plural; as, the necessaries of life.

A privy; a water-closet.

Such things, in respect to infants, lunatics, and
married women, as are requisite for support suitable to station.