"rubber" の定義と意味

a piece of soft material, often made of felt or foam, used for erasing chalk marks from a blackboard or pen marks from a whiteboard

contraceptive device consisting of a sheath of thin rubber or latex that is worn over the penis during intercourse

a series of games played until one partnership wins two games, with each game consisting of multiple deals, and the winning partnership being the one with the highest total score at the end of the rubber

any of various synthetic elastic materials whose properties resemble natural rubber