Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “algebra”


noun [U]     /ˈæl.dʒə.brə/
a part of mathematics in which signs and letters represent numbersBranches and types of mathematics algebraic     /ˌæl.dʒəˈbreɪ.ɪk/ adjective Branches and types of mathematics
(Definition of algebra noun from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
Focus on the pronunciation of algebra

Definitions of “algebra” in other dictionaries

Word of the Day


showing a wish to help or bring advantages to others, even if it results in disadvantage for yourself

Word of the Day


Read our blog about how the English language behaves.

Learn More

New Words

Find words and meanings that have just started to be used in English, and let us know what you think of them.

Learn More