1."a brief strange noise" what is the grammatical name given to this expression?
2. What is its function.?
What is the function of the expression a brief strange noice
It is noun phrase
Noun phrase
Noun phrase is the phrase that does the work of the noun
This is a noun phrase. It includes a noun (noise) and all its modifiers (a, brief, strange).
http://www.chompchomp.com/terms/noun.htm
Scroll down to "Understand the functions that nouns provide in sentences" and read about nouns, including noun phrases.
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