Eat away at sth Meaning, Examples & How to Use in English

What Does “Eat away at sth” Mean?

“Eat away at sth” means to slowly destroy, damage, or reduce something over time, often in a physical or emotional sense.

Introduction

The phrase “eat away at sth” is a common English phrasal verb that describes a gradual process of destruction or deterioration. It can refer to physical objects, like rust eating away at metal, or abstract concepts, such as guilt eating away at a person’s mind. Understanding the eat away at sth meaning helps learners recognize how things can diminish slowly but steadily. This phrase is useful in both everyday conversations and written English, especially when talking about problems, worries, or physical decay. Knowing how to use it correctly will improve your fluency and make your language more expressive.

Quick Info Box

• Phrasal verb: eat away at something
• Type: transitive
• Level: B2
• Short meaning: to slowly destroy or damage something

Structure (Grammar Rules)

“Eat away at sth” is a transitive and inseparable phrasal verb. This means the object always comes after the entire phrase. You cannot separate “eat” and “away” with the object.

Correct pattern: eat away at + object

Example: The acid eats away at the surface.

Incorrect: The acid eats the surface away.

How to Use “Eat away at sth”?

Use “eat away at sth” when you want to describe something being destroyed or reduced gradually. It is often used for physical damage, like corrosion or decay, and for emotional or mental effects, such as worry or guilt.

You can use it in past, present, and future tenses:

• Present: The paint eats away at the wood.
• Past: The problem ate away at his confidence.
• Future: The constant stress will eat away at your health.

Examples

Here are some examples of “eat away at sth” in sentences to help you understand its use:

• The salty sea air eats away at the metal parts of the boat.
• Her doubts ate away at her happiness for weeks.
• Over time, the chemicals eat away at the paint on the walls.
• Regret can slowly eat away at a person’s peace of mind.
• The constant criticism eats away at his self-esteem.

Common Mistakes

Many learners confuse the word order or use the phrase incorrectly. Here are some common mistakes:

• Incorrect: The acid eats the metal away.
• Correct: The acid eats away at the metal.
• Incorrect: Guilt eats away me.
• Correct: Guilt eats away at me.

Remember, always use “eat away at” followed by the object.

Differences / Synonyms

Similar phrasal verbs include “wear away,” “chip away at,” and “break down.” While all describe gradual damage, “eat away at” often implies a slow, corrosive process affecting either physical materials or emotions.

• Wear away: Usually refers to physical erosion caused by friction or weather.
• Chip away at: Suggests breaking small pieces off bit by bit.
• Break down: More general, meaning to stop working or fall apart.

Unlike these, “eat away at” can apply metaphorically to feelings, which makes it more versatile.

Common Collocations

Here are some common objects and ideas that often “eat away at” something:

• Rust – slowly damages metal.
• Guilt – affects emotions negatively.
• Time – gradually reduces value or condition.
• Worry – mentally affects a person.
• Acid – physically corrodes surfaces.

Related Phrasal Verbs

Here are related phrasal verbs of eat away at sth:

• Eat Sth In
• Eat Into Sth
• Eat Sb Up

Real-life Dialogue

Here’s a short conversation using “eat away at sth”:

Anna: I can’t stop thinking about the mistake I made at work.

Ben: That kind of guilt can really eat away at you if you don’t talk about it.

Anna: You’re right. I need to find a way to move on.

Practice

Complete the sentences with the correct form of “eat away at”:

• The salty air ________ the metal parts of the ship every year.
• Her doubts ________ her confidence during the project.
• Constant stress will ________ your health if you don’t relax.

FAQs

• What does “eat away at sth” mean?
  It means to slowly destroy or damage something over time.
• Is “eat away at” separable?
  No, the object always comes after the whole phrase.
• Can “eat away at sth” be used for emotions?
  Yes, it often describes feelings like guilt or worry affecting someone.
• What is a synonym for “eat away at sth”?
  “Wear away” or “chip away at” are similar but less emotional.
• Can it be used in all tenses?
  Yes, you can use it in past, present, and future forms.