1. Noun, Suru verb, Intransitive verb

   1.

   retreat; falling back; moving backwards; reversing

2. 2.

   recession; waning

3. Noun

   3.

   backspace (key)

Example sentences

• あいつ、おでこが広いだけだって言ってるけどさ、要は生え際が後退してるってことだろ。

  That guy said he had a wide, prominent forehead, but in fact, his hairline is receding.