SINCE 1828
no-no
noun
\ ˈnō-ˌnō
\
\
plural no-no's
or no-nos
Definition of no-no
1
: something unacceptable or forbidden
2
: no-hitter
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More Definitions for no-no
no-no
noun
English Language Learners Definition of no-no
informal
: something that people are not supposed to do because it is not proper, safe, fashionable, etc.
See the full definition for no-no in the English Language Learners Dictionary
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