to make a mistake or be incorrect, to deviate from the accepted moral or social standards

err on the side of something, to err is human, err in judgment

Formal and Informal Expressions of err

In different contexts, you can replace 'err' with suitable alternatives. In a more formal setting, 'make a mistake, be incorrect' is apt. In informal speech or writing, 'screw up, mess up' is a commonplace synonym.

err: Explore its Definition & Usage

err Definition

1to make a mistake or be incorrect
2to deviate from the accepted moral or social standards

Using err: Examples

Take a moment to familiarize yourself with how "err" can be used in various situations through the following examples!

Example
I'm sorry, I erred in my calculations.
Example
The jury erred in their verdict.
Example
It is better to err on the side of caution.
Example
He had erred in his judgment.

err Synonyms and Antonyms

Synonyms for err

mistake
blunder
deviate
slip up
go wrong

Antonyms for err

Phrases with err

err on the side of something
to choose or act in a way that favors a particular option, even if it involves more caution or risk than necessary
Example
When in doubt, it's best to err on the side of safety.
to err is human
it is natural for people to make mistakes
Example
Don't be too hard on yourself. To err is human, after all.
err in judgment
to make a mistake in one's assessment or decision-making
Example
He erred in judgment when he decided to invest all his money in that company.

Origins of err

from Middle English 'erren', meaning 'to wander, go astray'

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Summary: err in Brief

The verb 'err' [ɜːr] means to make a mistake or be incorrect, and also to deviate from accepted moral or social standards. It is often used in phrases like 'err on the side of caution,' which means to choose a more cautious option, and 'to err is human,' which acknowledges that everyone makes mistakes. 'Err' can also be used in the phrase 'err in judgment,' which means to make a mistake in decision-making.