The noun rubber has 5 senses (first 1 from tagged texts)
1. (4) rubber, natural rubber, India rubber, gum elastic, caoutchouc -- (an elastic material obtained from the latex sap of trees (especially trees of the genera Hevea and Ficus) that can be vulcanized and finished into a variety of products)
2. rubber, synthetic rubber -- (any of various synthetic elastic materials whose properties resemble natural rubber)
3. rubber eraser, rubber, pencil eraser -- (an eraser made of rubber (or of a synthetic material with properties similar to rubber); commonly mounted at one end of a pencil)
4. condom, rubber, safety, safe, prophylactic -- (contraceptive device consisting of a sheath of thin rubber or latex that is worn over the penis during intercourse)
5. arctic, galosh, golosh, rubber, gumshoe -- (a waterproof overshoe that protects shoes from water or snow)
Overview of verb rubber
The verb rubber has 1 sense (no senses from tagged texts)
1. rubberize, rubberise, rubber -- (coat or impregnate with rubber; "rubberize fabric for rain coats")
Overview of adj rubber
The adj rubber has 1 sense (no senses from tagged texts)
1. rubber, no-good -- (returned for lack of funds; "a rubber check"; "a no-good check")