American English
/ˈɹə.bɚ/
2 syllables · Stress the first syllable.
a strong, flexible material that comes from some plants or is made artificially
Practice out louda strong, flexible material that comes from some plants or is made artificially
These gloves are made of rubber.
The rubber seal keeps water out.
In American English, the thing used to remove pencil marks is usually called an eraser, not a rubber.
rubber gloves · rubber sole · rubber seal · natural rubber
be made of rubber
rubber + noun
a thin covering worn on the penis during sex to help prevent pregnancy and infection
He kept a rubber in his wallet.
They used a rubber to reduce the risk of infection.
This meaning is informal. In neutral English, say condom.
a thin loop of elastic material used to hold things together
She wrapped a rubber band around the papers.