1A seat or bench; a place to sit.
公園の腰掛けに腰を下ろして休んだ。
I sat down on a bench in the park and rested.
玄関に小さな腰掛けを置いて靴を履き替える。
I put a small seat by the entrance to change shoes.
彼は腰掛けに座ると新聞を読み始めた。
He sat on the seat and began reading the newspaper.
古い腰掛けがまだ家に残っている。
An old seat still remains in the house.
2A temporary job or role taken while looking for something better or until circumstances change; a stopgap position (colloquial).
大学を卒業してすぐに腰掛けでアルバイトを始めた。
Right after graduating from university, I started a temporary part-time job.
彼女は本採用までの腰掛けとしてその職場にいるだけだ。
She is only at that workplace as a temporary position until a permanent job comes up.
腰掛けのつもりで働き始めたが、気づけば長年勤めていた。
I started working as a stopgap, but before I knew it I had been there for many years.