Used and loved by millions
Since I tried Ludwig back in 2017, I have been constantly using it in both editing and translation. Ever since, I suggest it to my translators at ProSciEditing.

Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com
specialize in
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "specialize in" is correct and usable in written English.
It is used to describe an area of expertise or focus of study or work. For example, "I specialize in marketing research."
✓ Grammatically correct
News & Media
Academia
Encyclopedias
Wiki
Science
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
60 human-written examples
Nguzunguzu specialize in special.
News & Media
"Specialize in bunionectomy".
News & Media
Sandlin doesn't specialize in subtlety.
News & Media
They specialize in it there.
News & Media
They specialize in midnight sailings.
News & Media
They specialize in the new.
News & Media
Separate facilities specialize in homeopathic medicine.
Encyclopedias
Some pros specialize in bird control.
News & Media
The owners seem to specialize in kitsch.
News & Media
Several companies specialize in designing these units.
News & Media
Guest: You specialize in local stuff, right?
News & Media
Expert writing Tips
Best practice
When describing a professional's skills, use "specialize in" to clearly state their area of expertise. For example, "The doctor specializes in cardiology".
Common error
Avoid using "specialize in" when simply describing a preference. Instead of "I specialize in eating pizza", which implies professional pizza consumption, use "I enjoy eating pizza" or "I prefer pizza".
Source & Trust
79%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "specialize in" functions as a verb phrase followed by a preposition, indicating a specific area of expertise, focus, or concentration. Ludwig's examples show its use in various contexts, from medical specializations to business focuses.
Frequent in
News & Media
33%
Wiki
25%
Academia
12%
Less common in
Science
12%
Encyclopedias
8%
Formal & Business
8%
Ludwig's WRAP-UP
In summary, "specialize in" is a versatile and grammatically sound phrase used to denote expertise or a concentrated focus in a specific area. As Ludwig AI confirms, it's widely accepted and used across various contexts. While it's most common in news, wiki, and academic content, it's important to use it precisely, avoiding overuse in informal situations. Alternatives like "focus on" or "have expertise in" can provide nuanced ways to express similar ideas. Remembering these best practices will ensure effective and appropriate use of "specialize in" in your writing.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
have expertise in
Directly indicates specialized knowledge, very close in meaning to "specialize in".
focus on
This denotes a general area of attention without implying expertise.
major in
This alternative refers specifically to academic fields of study. It's less versatile than "specialize in".
be an expert in
Implies recognized authority, a stronger claim than simply specializing.
concentrate on
This suggests a deliberate focus of effort, but not necessarily expertise.
excel at
This focuses on superior performance rather than a specific area of focus.
be proficient in
This emphasizes skill level, not necessarily the primary area of work.
be skilled in
Highlights competence but can apply to various activities, not exclusively areas of expertise.
be versed in
Suggests a deep understanding and familiarity, but not necessarily practical application.
devote oneself to
This implies commitment and time investment more than specific skill.
FAQs
How to use "specialize in" in a sentence?
Use "specialize in" to describe someone's area of expertise or focus. For example, "She "specializes in" data analysis", or "They "specialize in" custom software development".
What can I say instead of "specialize in"?
You can use alternatives like "focus on", "concentrate on", or "have expertise in" depending on the context.
Is it correct to say "specialize on" instead of "specialize in"?
No, the correct preposition to use with "specialize" when indicating an area of expertise is "in". Therefore, you should always say "specialize in", not "specialize on".
Editing plus AI, all in one place.
Stop switching between tools. Your AI writing partner for everything—polishing proposals, crafting emails, finding the right tone.
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
4.5/5
Expert rating
Real-world application tested