The Simple English Wikipedia has an article on: Rubber Pronunciation (UK) IPA (key): /ˈrʌbə/, SAMPA: /"r\Vb@/ (US) IPA (key): /ˈrʌbɚ/, SAMPA: /"r\Vb@`/ Audio (US)(file) Noun Singular rubber Plural rubbers A material made from the sap of trees. The ball is made of rubber. (countable) An eraser. (countable) (slang) A condom.Wikiwand - on Seamless Wikipedia browsing. On steroids.Remove ads