退 [--]

Jyutping teoi3 kwan4
Pinyin tuì qún

Definitions (Wiktionary)
  1. verb, verb-object
    to leave a group chat
  2. verb, broadly, verb-object
    to leave an organization

退群 [--]

Jyutping
Pinyin tuì qún

Definitions (CC-CEDICT)
  1. to withdraw from a group
Examples (Wiktionary)
  1. Mandarin
    入群、退群
    入群、退群
    rù qún , tuì qún
    • to join a group, to leave a group