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sake cup; cup for alcoholic beverages
counter for cupfuls, bowlfuls, spoonfuls, etc.
counter for boats
counter for octopuses and squid
cup; championship
お祝いに一盃いかがですか。
How about a cup to celebrate?
お祝いの盃を交わしました。
We exchanged celebratory cups.
この盃は祖父から受け継いだ大切なものです。
This sake cup is a precious item inherited from my grandfather.