JAPAN TRENCH(noun)Did you mean?Synonyms RhymesDefinitions There is 1 meaning of the phrase Japan Trench. Japan Trench - as a noun A depression in the floor of the pacific ocean to the northeast of japan that reaches depths of 30,000 feet Word Variations & RelationsAnagramsStarts JStarts JAStarts JAPStarts JAPAEnds HEnds CHEnds NCHEnds ENCHStarts J & ends HStarts JA & ends HStarts J & ends CHA-Z Proximitiesjanty15januaryjanusjanus-facedjapan14 Japan Trench japanesejapanese-speakingjapanesenessjapanise17japanised19