backside

From Wiktionary

Pronunciation[change]

Noun[change]

Singular
backside

Plural
backsides

  1. (countable) Something's backside is the side that is opposite of the front.
  2. (countable) Someone's backside is their buttocks or butt.
    The child was spanked in the backside for misbehaving.

Synonyms[change]

Related words[change]