Final consonant cluster /ɡz/

/gz/ is a final consonant cluster that occurs in English.

This one consists of a g phoneme /g/ followed by a z phoneme /z/.

Spelling is either as

• ⟨g⟩ + ⟨s⟩, e.g. legs
• ⟨gg⟩ + ⟨s⟩, e.g. eggs.
• ⟨gue⟩ + ⟨s⟩, e.g. colleagues.