rubber
[C/U] Both
pl: rubbers
The term carries a strong sensory association with flexibility, grip, and resilience. It evokes a physical feeling of elasticity and the ability to bounce back after being stretched or compressed. In industrial contexts, it suggests durability and waterproofing. Regional usage creates a sharp divide between American and British English. In the UK, it is the standard term for an eraser, whereas in the US, using rubber in this context is rare and can lead to confusion, as the word is often associated with condoms in American slang.
Uncountable when referring to the raw material used in manufacturing. Countable when referring to a specific object like an eraser or a rubber band.