The definition of grammatical is anything that has to do with sentences, punctuation, or the correct ways to write or speak a language.(adjective)
An example of something grammatical is a class on English creative writing.
See grammatical in Webster's New World College Dictionary
Origin: LL grammaticalis < L grammatica: see grammar
See grammatical in American Heritage Dictionary 4
Origin: Late Latin grammaticālis
Origin: , from Latin grammaticus
Origin: , from Greek grammatikos, of letters; see grammar.
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