/ ˈsɪntæks; NAmE / noun [ U ]
1.
( linguistics ) the way that words and phrases are put together to form sentences in a language; the rules of grammar for this
—compare morphology
2.
( computing ) the rules that state how words and phrases must be used in a computer language
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WORD ORIGIN
late 16th cent.: from French syntaxe , or via late Latin from Greek suntaxis , from sun- together + tassein arrange.