- 1 [transitive, intransitive] to gradually destroy the surface of something through the action of wind, rain, etc.; to be gradually destroyed in this way synonym wear away erode something (away) The cliff face has been steadily eroded by the ocean. erode (away) The rocks have eroded away over time.
- 2[transitive, intransitive] erode (something) to gradually destroy something or make it weaker over a period of time; to be destroyed or made weaker in this way Her confidence has been slowly eroded by repeated failures. Mortgage payments have been eroded (= decreased in value) by inflation.
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NAmE//ɪˈroʊd//[often passive]Verb Forms present simple I / you / we / they erode
he / she / it erodes
past simple eroded
-ing form eroding