Definitions of "No":
Not in any degree or manner; not at all; "he is no better today"
A negative; "his no was loud and clear"
Quantifier; used with either mass nouns or plural count nouns for indicating a complete or almost complete lack or zero quantity of; "we have no bananas"; "no eggs left and no money to buy any"; "have you no decency?"; "did it with no help"; "I'll get you there in no time"
Used to express refusal or denial or disagreement etc or especially to emphasize a negative statement; "no, you are wrong"
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