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開口 news1 nf20 | news1 nf20 kaikō
gen. opening n vs; aperture n vs (e.g. camera); opening one's mouth; beginning to speak; open adj-f; broad adj-f
開口 kaikō
gen. Aperture (e.g. camera) Geological Terms Dictionary (Bruce Bain and Leslie Oberman)
surn., geogr. Kaiguchi
tech. opening
開口 kaikō
construct. opening