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

His favorite spots for lunch include Manjar Blanco, a casual farm-to-table restaurant known for its tacos, and Pancho Maíz, which specializes in rustic corn dishes. —April Long, Travel + Leisure, 7 Feb. 2026

Ashley Dixon is a content creator who specializes in home cleaning, organization, and decor topics at Alexander Renee Design. —Tessa Cooper, The Spruce, 7 Feb. 2026

Still, some players do specialize in defense, like Benjy Cho, another senior on the team, who is the best at pulling flags. —Hannah Keyser, CNN Money, 7 Feb. 2026

Benouar specializes in historic architecture at her job and shares a connection with John Harvey Carter’s work. —David Caraccio, Sacbee.com, 7 Feb. 2026

Word History

First Known Use

1616, in the meaning defined at sense 4

Phrases Containing specialize

• sub-specialize

Rhymes for specialize

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

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