caoutchouc.
rubber (natural and synthetic)
Meaning & usage
rubber (natural and synthetic)
plastic
a rubber tree, hevea (Hevea brasiliensis)
a rubber fig, a tropical tree often used ornamentally (Ficus elastica)
a raincoat
waterproof rubber boots
a rubber band
Where this word comes from
Borrowed from Spanish cauchuc (an early variant of caucho), from Quechua kawchu. The final -c was formerly variably pronounced or silent, but is now always silent.
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Definitions, grammatical labels, IPA, etymology and examples: Wiktionary contributors, extracted by Kaikki / Wiktextract. Adapted under CC BY-SA 4.0. Selected fields and authored examples are shown; third-party quotations and audio are omitted. See contributor history.
Last enriched 2026-09-10. Definitions are in English. Romanizations are shown when supplied by the source; syllable estimates are omitted for unsupported scripts.