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

• bracket
• category
• class
• division
• family
• genus
• grade
• group
• kind
• league
• order
• rank(s)
• rubric
• set
• species
• tier
• type

Examples of classification in a Sentence

the classification of new species

job classifications for government workers

Recent Examples on the Web

Delaware’s coin from 2018 showcases Annie Jump Cannon, the pioneering astronomer responsible for the star classification system still used today. —Andrew Paul, Popular Science, 15 May 2025

As stated previously, LLCs enjoy the benefit of flexible taxation structures and the freedom to choose an advantageous tax classification for the business. —Prasanna Kumar, Forbes.com, 14 May 2025

The course was modified to accommodate each classification according to rules set forth by the U.S. Adaptive Golf Alliance. —Ashley MacKin Solomon, San Diego Union-Tribune, 13 May 2025

Much of the challenge, quite simply, lies in the German language — American consumers tend to be dissuaded by unfamiliar grape names, complex labels and Germany’s famously intricate classification system. —Anna Lee Iijima, Chicago Tribune, 13 May 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