uniform

1 of 4

adjective

uni·​form ˈyü-nə-ˌfȯrm 

1

: having always the same form, manner, or degree : not varying or variable

uniform procedures

uniform temperatures

2

: consistent in conduct or opinion

uniform interpretation of laws

3

: of the same form with others : conforming to one rule or mode : consonant

uniform customs

4

: presenting an unvaried appearance of surface, pattern, or color

uniform red brick houses

5

: relating to or being convergence of a series whose terms are functions in such manner that the absolute value of the difference between the sum of the first n terms of the series and the sum of all terms can be made arbitrarily small for all values of the domain of the functions by choosing the nth term sufficiently far along in the series

uniformly

ˈyü-nə-ˌfȯrm-lē 

ˌyü-nə-ˈfȯrm-

adverb

uniformness

ˈyü-nə-ˌfȯrm-nəs 

noun

uniform

2 of 4

verb

uniformed; uniforming; uniforms

transitive verb

1

: to bring into uniformity

2

: to clothe with a uniform

uniform

3 of 4

noun

: dress of a distinctive design or fashion worn by members of a particular group and serving as a means of identification

broadly : distinctive or characteristic clothing

Uniform

4 of 4

communications code word

—used as a code word for the letter u

Synonyms of uniform

Adjective

• unchanging
• steady

Noun

• outfit
• livery

Examples of uniform in a Sentence

Adjective

The museum is kept at a uniform temperature to protect the artifacts.

All departments have uniform training standards.

Noun

the band uniform was brown with red and white stripes

Recent Examples on the Web

Adjective

And Connecticut cities and towns all have followed a uniform assessment method for more than 50 years, according to legislative researchers. — Keith M. Phaneuf, Hartford Courant, 17 July 2026

The Albert jersey patch will be featured on the upper left chest of all four Lakers uniform designs including the gold icon edition, purple statement edition, white association edition and the black city edition. — Sportico Staff, Sportico.com, 17 July 2026

Noun

Six hours later, Donnie asked for $3,500, for Trixie’s school fees and uniforms. — Juliet Linderman, Fortune, 16 July 2026

Both Vogue’s global head of fashion network, Virginia Smith, and fashion news writer, Alexandra Hildreth—who tend to stick to a minimalist uniform of tried-and-trues—are loving the ease and simplicity of the pajama trouser this season. — Talia Abbas, Vogue, 15 July 2026

Word History

Etymology

Adjective

Middle English uniforme, from Middle French, from Latin uniformis, from uni- + -formis -form

First Known Use

Adjective

15th century, in the meaning defined at sense 1

Verb

circa 1681, in the meaning defined at sense 1

Noun

1748, in the meaning defined above

Communications Code Word

1956, in the meaning defined above

Phrases Containing uniform

• battle dress uniform
• dress uniform
• in (full) uniform
• uniform resource locator

Rhymes for uniform

• chloroform
• coliform
• cribriform
• cruciform
• filiform
• fusiform
• isoform
• microform
• multiform
• outperform
• piriform
• plexiform

Kids Definition

uniform

1 of 3 adjective

uni·​form ˈyü-nə-ˌfȯrm 

1

: not varying

uniform temperature

2

: of the same form with others

uniform procedures in the courts

uniformly adverb

uniform

2 of 3 verb

: to dress with a uniform

uniform

3 of 3 noun

: uniform dress worn by members of a particular group (as an army or a police force)

Legal Definition

uniform

adjective

uni·​form

: of, relating to, or based on a uniform act