WordNet: embrasure, port, porthole

an opening (in a wall or ship or armored vehicle) for firing through

• domain: topic ship

• hypernym opening

embrasure

• (suomi) ampuma-aukko (synonyymi)

port

• (suomi) ampuma-aukko (synonyymi)

porthole

• (suomi) ampuma-aukko (synonyymi)