classification

noun

clas·​si·​fi·​ca·​tion ˌkla-sə-fə-ˈkā-shən 

1

: the act or process of classifying

2

a

: systematic arrangement in groups or categories according to established criteria

specifically : taxonomy

b

: class, category

classificatory

ˈkla-sə-fi-kə-ˌtȯr-ē  kla-ˈsi-fə-  ˈkla-sə-fə-ˌkā-tə-rē 

adjective

Synonyms

• category
• type
• kind

Examples of classification in a Sentence

the classification of new species

job classifications for government workers

Recent Examples on the Web

In MLPerf Tiny benchmarks, the X160 Gen 2 reportedly delivered 2x the performance of competing solutions with a similar small footprint, across workloads like keyword spotting, image classification, and anomaly detection. —Marco Chiappetta, Forbes.com, 8 Sep. 2025

Goldwitz reached out to Pondville Superintendent Lisa Curto and continued to develop it with new Superintendent Joy Gallant as well as Joseph Salvucci, the director of treatment and classification. —Flint McColgan, Boston Herald, 6 Sep. 2025

Its classification as a field of scientific study attracted members of the aristocracy towards it. —Taylor Crumpton, Time, 2 Sep. 2025

Exemptions apply to certain categories, including diplomatic and official visas (A, G, NATO classifications), as well as applicants renewing a full-validity B-1, B-2, or B-1/B-2 visa or a Border Crossing Card within 12 months of expiration, provided specific conditions are met. —Billal Rahman, MSNBC Newsweek, 1 Sep. 2025

Word History

Etymology

borrowed from New Latin classificātiōn-, classificātiō, from Latin classis "group called to military service, fleet, class entry 1" + -i- -i- + -ficātiōn-, -ficātiō -fication

First Known Use

1767, in the meaning defined at sense 2a

Phrases Containing classification

• Dewey decimal classification
• self-classification

Rhymes for classification

• abbreviation
• abomination
• acceleration
• accentuation
• accommodation
• accreditation
• acculturation
• accumulation
• acetylation
• adjudication
• administration
• adulteration

Kids Definition

classification

noun

clas·​si·​fi·​ca·​tion ˌklas-(ə-)fə-ˈkā-shən 

1

: the act or process of classifying

2

a

: systematic arrangement in groups : taxonomy

b

: class entry 1 sense 3a, category

classificatory

ˈklas-(ə-)fə-kə-ˌtōr-ē  -ˌtȯr- 

adjective

Medical Definition

classification

noun

clas·​si·​fi·​ca·​tion ˌklas-(ə-)fə-ˈkā-shən 

1

: the act or process of classifying

2

: systematic arrangement of animals and plants in groups or categories according to established criteria

specifically : taxonomy sense 2

Legal Definition

classification

noun

clas·​si·​fi·​ca·​tion

: the act or method of distributing into a class or category according to characteristics

also : a class or category determined by characteristics see also suspect classification