erode
C1Neutral to formal; common in technical, environmental, economic, and figurative contexts.
Definition
Meaning
To gradually wear away or destroy a surface or substance by chemical or physical action.
To gradually reduce the strength, power, value, or quality of something, often over time.
Linguistics
Semantic Notes
The verb inherently suggests a gradual, often imperceptible process of diminishment. It can apply literally (geology, materials) or metaphorically (confidence, rights, profits). The agent of erosion can be natural (water, wind) or abstract (inflation, criticism).
Dialectal Variation
British vs American Usage
Differences
No significant lexical differences. The concept is identical. Slight potential variation in typical collocates within regional news or academic discourse (e.g., 'erode sovereignty' vs. 'erode trust' frequencies).
Connotations
Equally negative for both metaphorical uses (eroding democracy, standards). Literal use is neutral/descriptive.
Frequency
Comparably frequent in both varieties, with high usage in environmental science, economics, and political commentary.
Vocabulary
Collocations
Grammar
Valency Patterns
[NP] erodes[NP] erodes [NP] (e.g., Inflation erodes savings.)[NP] is eroded by [NP]Vocabulary
Synonyms
Strong
Neutral
Weak
Vocabulary
Antonyms
Phrases
Idioms & Phrases
- “The eroding sands of time.”
Usage
Context Usage
Business
Market share/competitive advantage eroded by new entrants. Profits eroded by rising costs.
Academic
The study examines how trust erodes in institutions. Coastal geomorphology focuses on how cliffs erode.
Everyday
Constant criticism can erode your confidence. The riverbank is eroding after all the rain.
Technical
Acidic groundwater can erode limestone, forming karst landscapes. The anode material erodes electrochemically.
Examples
By Part of Speech
verb
British English
- The chalk cliffs are eroding at an alarming rate.
- Public trust in the media has been steadily eroded.
- We must not let these standards erode further.
American English
- The riverbank eroded after the flood.
- Inflation erodes the value of your savings.
- His constant negativity eroded team morale.
adverb
British English
- The hillside was eroding perceptibly.
- Support was declining erodibly over time.
American English
- The metal corroded, eroding slowly in the salt air.
- The agreement was eroding inevitably.
adjective
British English
- The eroded coastline required urgent protection.
- They faced an eroded margin in the last quarter.
American English
- The eroded canyon walls revealed layers of rock.
- The policy led to eroded public support.
Examples
By CEFR Level
- The sea erodes the soft rock.
- Wind and rain can erode soil.
- Over many years, the river eroded the valley.
- His constant lateness began to erode his manager's trust.
- The government's credibility has been eroded by the scandal.
- Rising production costs are eroding the company's profitability.
- Geopolitical tensions threaten to erode the fragile consensus on trade.
- The principle of judicial independence must not be eroded by political interference.
Learning
Memory Aids
Mnemonic
Imagine a ROD of metal left in the rain, slowly RUSTING and wearing away: E-ROD-E.
Conceptual Metaphor
VALUABLE THINGS ARE SOLID SUBSTANCES / LOSS IS GRADUAL WEARING AWAY (e.g., erosion of rights, erosion of morale).
Watch out
Common Pitfalls
Translation Traps (for Russian speakers)
- Avoid direct translation with 'разрушать' for sudden destruction; 'erode' is gradual. 'Разъедать' is closer for literal corrosion. For metaphorical use, 'подрывать' (undermine) is often a better fit than 'стирать'.
Common Mistakes
- Using 'erode' for sudden destruction (e.g., 'The bomb eroded the building.'). Incorrect preposition: 'erode on' (correct: 'erode' is transitive: Water erodes the rock.). Confusing 'erode' (process) with 'corrode' (typically chemical).
Practice
Quiz
In which sentence is 'erode' used METAPHORALLY?
FAQ
Frequently Asked Questions
The noun form is 'erosion' (e.g., soil erosion, erosion of trust).
Yes. It is used literally for physical materials (rock, metal) and metaphorically for abstract concepts (confidence, rights, value).
Both imply gradual destruction. 'Corrode' specifically implies chemical action, often on metals (rust). 'Erode' is broader, covering physical abrasion (wind, water) and metaphorical weakening.
In its literal, geological sense, it is neutral. In nearly all metaphorical uses, it carries a negative connotation, implying an undesirable loss or weakening.