carpenter ant
US /ˈkɑːr.pən.t̬ɚ ˌænt/
UK /ˈkɑːr.pən.t̬ɚ ˌænt/

1.
a large ant that excavates and lives in wood, but does not eat it
:
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We found carpenter ants in the old wooden shed.
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Carpenter ants can cause significant damage to wooden structures.