Adjective mat has 1 sense
- flat, mat, matt, matte, matted - not reflecting light; not glossy; "flat wall paint"; "a photograph with a matte finish"
Antonym: bright (indirect, via dull)
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Noun mater has 1 sense
- ma, mama, mamma, mom, momma, mommy, mammy, mum, mummy, mater - informal terms for a mother
--1 is a kind of mother, female parent
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