noun
steady job; regular employment; occupation
Refers to a stable, long-term job or one's regular field of work. Often used in contexts of employment status, such as 定職に就く (to find steady work) or 定職がない (without a regular job).
彼はまだ定職に就いていない。
He hasn't found a steady job yet.
定職があれば生活が安定する。
If you have regular employment, your life becomes stable.