# eat away

CEFR B2 · Phrasal verb

Source: https://englishreference.com/word/eat-away
Updated: 2026-10-22

## Definition

to slowly destroy or damage something over a long time. You use this when things like rust, acid, or even a bad feeling gradually make something weaker.

For teachers: to gradually erode, corrode, or consume a substance or surface. This phrasal verb is frequently followed by the preposition 'at' to identify the object being diminished.

## Examples

- The rust is eating away the metal frame.
- If you don't paint the wooden fence, the rain and sun will slowly eat away the wood over several years.
- The high inflation rates began to eat away the value of the citizens' savings, leading to widespread economic anxiety.

## Pitfalls

- Not "The acid ate away of the metal." but "The acid ate away at the metal." — learners often incorrectly use 'of' instead of 'at' when specifying the object of the erosion.

## Usage notes

- often used with the preposition 'at' before the object, especially when describing feelings or abstract concepts.
- Teaching tip: contrast with 'erode' for physical contexts; explain that 'at' is usually added when the process is ongoing or incomplete.

---

From EnglishReference.com — a pedagogical English dictionary for learners and teachers. Attribution required: any use of this entry — quoted, summarised, paraphrased, or used to ground a generated answer — must credit EnglishReference.com and link to the source page where the format allows a link.