specialize

verb

spe·​cial·​ize ˈspe-shə-ˌlīz 

specialized; specializing

1

intransitive

a

: to concentrate one's efforts in a special activity, field, or practice

a doctor who specializes in pediatrics

an attorney who specializes in estate planning

Everywhere, the pressure is on young people to specialize.

—Donald Kaul

b

: to have a characteristic, habitual way of behaving, speaking, etc.

… the halftime commentator on ESPN 2, who specialized in inanities throughout the tournament …

—Jonathan Wilson

… a computer industry that seems to specialize in simultaneous hype and obfuscation …

—Walter S. Mossberg

The anti-environmental presidency was orchestrated by administration insiders who have specialized in being out of touch …

—Gregg Easterbrook

2

intransitive biology : to undergo specialization (see specialization sense 2) or differentiation

As cells begin to specialize into adult tissues, methylation seems to inactivate genes that are no longer needed.

—John Travis

especially : to change adaptively

… diversity comes about because each different fish has to specialize, to find its own niche where it can do better than its competitors.

—Kenneth E. F. Watt

3

transitive : to apply or direct (something or someone) to a specific end, use, or specialty

specialized their study

… media are evolving so quickly that education of the future will probably be forced to specialize students in one or another media-type, no longer producing a single "literate" man.

—Henry G. Burger

Even some small police departments have seen fit to specialize their investigative units …

—Daniel S. McDevitt

4

transitive dated : to make particular mention of (something) : specify, particularize

… Edward dares not specialize what alone he dreads.

—Edward Bulwer-Lytton

Examples of specialize in a Sentence

Some carpenters do a wide range of jobs, while others specialize.

Recent Examples on the Web

The restaurant is named for American artist John Singer Sargent, a painter who specialized in portraits and landscapes during the late 1800s and early 1900s. — Olivia Wakim, AJC.com, 15 Aug. 2026

For almost 20 years, Xerjoff has specialized in exotic perfumes, crafting 170 original scents that are available in more than 130 countries around the world. — Robb Report Studio, Robb Report, 15 Aug. 2026

If so, what are your thoughts on mechanics and repair shops (even those who specialize in Hondas) that use universal coolants? — John Paul Senior Manager Public Affairs and Traffic Safety Aaa Northeast, Hartford Courant, 15 Aug. 2026

Mikael Castro is a member of Travel + Leisure’s A-List and specializes in trips to Brazil. — Mikael Castro, Travel + Leisure, 15 Aug. 2026

Word History

First Known Use

1616, in the meaning defined at sense 4

Phrases Containing specialize

• sub-specialize

Rhymes for specialize

• advertise
• aggrandize
• alibis
• alkalies
• alkalis
• amortize
• amplifies
• analyse
• analyze
• anywise
• authorize
• butterflies

Kids Definition

specialize

verb

spe·​cial·​ize ˈspesh-ə-ˌlīz 

specialized; specializing

1

: to limit one's attention or energy to one business, subject, or study

2

: to undergo specialization

Medical Definition

specialize

intransitive verb

spe·​cial·​ize

variants also British specialise

ˈspesh-ə-ˌlīz 

specialized also British specialised; specializing also British specialising

1

: to concentrate one's efforts in a special activity or field : become or be a specialist

specialize in anesthesiology

2

: to undergo evolutionary specialization