Meaning of “eat away at something” in the English Dictionary

american-english dictionary

"eat away at something" in American English

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eat away at something

phrasal verb with eat us /it/ verb [ I/T ] past tense ate /eɪt/ , past participle eaten /ˈi·tən/

to slowly damage or destroy something:

Waves had eaten away at the sand dunes.

(Definition of “eat away at something” from the Cambridge Academic Content Dictionary © Cambridge University Press)