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Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com
a operation called
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "a operation called" is not correct in English.
It should be "an operation called" due to the vowel sound that begins the word "operation." You can use the corrected phrase when introducing the name of a specific operation in a technical or medical context. Example: "There is an operation called laparoscopic surgery that minimizes recovery time."
⚠ May contain grammatical issues
News & Media
Encyclopedias
Science
Alternative expressions(4)
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Human-verified examples from authoritative sources
Exact Expressions
1 human-written examples
The cement plug was poured into the well last Thursday, after tons of mud had been dumped into the well in a operation called a static kill.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
58 human-written examples
For some patients who have not had good results with eyedrops, or who have trouble remembering to use the drops every day, a good option is an operation called a trabeculectomy, which creates a new drainage system for the eye.
News & Media
A: An operation called Triton will be run by the EU's border force, which will be focused on patrolling borders.
News & Media
"We did an operation called an osteocapsular arthroplasty this morning – an oca is the short term for it," confirmed Dr O'Driscoll, who has been the England and Wales Cricket Board's chosen specialist in this area for several years.
News & Media
Admiral Allen and BP officials said that efforts to pump mud and cement into the well, an operation called a static kill, would be delayed 24 to 36 hours.
News & Media
He immediately recommended an operation called a laminectomy to relieve the pressure on the nerve between my fourth and fifth vertebrae, which was being crushed and causing me severe pain, a condition called a lumbar stenosis.
News & Media
A group is a set, G, together with an operation (called the group law of G) that combines any two elements a and b to form another element, denoted a b or ab.
Wiki
In his Skid Row space, An has set up both his home and an operation called Kokiri Lab, a hi-tech "hackerspace" dedicated to the development of wearable technology.
News & Media
To whom it may concern, This is to inform you that we, Anonymous, are organizing an Operation called "Payback is a bitch".
News & Media
As part of an operation called "BEST", it introduced a common IT system and standards across the group.Before the changes, Nestlé's American factories purchased their raw materials independently.
News & Media
If |A| = 1 and (left| P right| > 1) (line 18), an operation called Decomposition is performed on the attribute a stored in A before establishing mappings (lines 19 28).
Science
Expert writing Tips
Best practice
Always use the correct article ('an' before words starting with a vowel sound) to ensure grammatical accuracy. Remember it's "an operation", not "a operation".
Common error
Avoid using "a" before words that begin with a vowel sound. Always double-check the article before nouns like 'operation', 'event', or 'instance' to prevent grammatical errors.
Source & Trust
79%
Authority and reliability
2.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "a operation called" attempts to introduce a named activity or process. However, it is grammatically flawed due to the incorrect use of the article "a" instead of "an". While the example provided by Ludwig uses this phrase, the AI flags it as incorrect.
Frequent in
News & Media
33%
Encyclopedias
33%
Science
33%
Less common in
Formal & Business
0%
Wiki
0%
Reference
0%
Ludwig's WRAP-UP
The phrase "a operation called" is grammatically incorrect; the correct form is "an operation called". The error arises from using "a" before a word that begins with a vowel sound. Ludwig AI identified the grammatical error. To maintain clarity and professionalism, use the corrected phrase or alternatives like "a procedure called" or "a process known as". Ensure the correct article is used to avoid detracting from the intended communication.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
an operation known as
Replaces the indefinite article with the correct form ('an' instead of 'a') and uses "known as" for a similar function.
a procedure called
Substitutes "operation" with "procedure", which is a more general term for a set of actions.
a process termed
Replaces "called" with "termed", indicating a specific name given to a process.
an activity named
Uses "activity" instead of "operation", broadening the scope to include various types of actions.
a task referred to as
Substitutes "operation" with "task", implying a specific duty or assignment.
an event designated as
Replaces "operation" with "event", suggesting a planned or significant occurrence.
a measure entitled
Uses "measure" instead of "operation", often used in formal or official contexts.
a campaign labeled
Substitutes "operation" with "campaign", referring to a series of actions with a specific goal.
a mechanism known under the name of
A more descriptive alternative, suitable for technical or formal writing.
an undertaking styled as
Replaces "operation" with "undertaking", implying a significant or complex project.
FAQs
Why is it incorrect to say "a operation"?
The correct phrasing is "an operation" because the word "operation" begins with a vowel sound. In English grammar, we use "an" before words that start with a vowel sound, and "a" before words that start with a consonant sound.
What are some alternatives to "a operation called" that correct the grammar?
Alternatives include "an operation called", "a procedure called", or "a process known as".
How do I know when to use 'a' versus 'an'?
Can I use "a operation called" in any context?
While technically grammatically incorrect, you might encounter "a operation called" in informal speech or writing. However, for clarity and professionalism, it's best to use "an operation called" or a similar, grammatically correct alternative.
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Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
79%
Authority and reliability
2.5/5
Expert rating
Real-world application tested