japan trench is a noun meaning "a depression in the floor of the Pacific Ocean to the northeast of Japan that reaches depths of 30,000 feet". It carries one recorded sense.
a depression in the floor of the Pacific Ocean to the northeast of Japan that reaches depths of 30,000 feet
Definitions, synonyms and semantic relations for japan trench come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.