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Definition of matter
matter
/ˈmæt.ɚ/
mat · ter
Plural:matters
•Past Simple:mattered
•Past Participle:mattered
•Present Participle:mattering
matter Lexical Profile
CEFR
A2
Grade
2
Tier
1
Usage
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• noun
1
A subject, situation, or issue under consideration or discussion.
Example
"We need to discuss a matter of great importance regarding the company's future."
2
Physical substance in general, as distinct from mind and spirit; that which occupies space and has mass.
Example
"Scientists are studying the origins of dark matter in the universe."
3
A reason for distress or a problem (typically used with 'the').
Example
"She asked him what the matter was, but he refused to speak."
Synonyms
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View all antonyms for matter• verb
1
To be of importance or to have significance.
Example
"It does not matter whether we win or lose, as long as we give our best effort."
Synonyms
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Word Origin & Etymology
From Middle English matere, from Old French matiere, derived from Latin materia meaning 'timber, material, or substance', ultimately from mater ('mother').
Cite this Entry
Wordmom. (2026). Definition of Matter. In Wordmom Dictionary. Retrieved Oct 12, 2026, from https://wordmom.com/dictionary/matter