Definition of January noun from the Oxford Advanced American Dictionary

  

January

 noun
noun
NAmE//ˈdʒænyuˌɛri//
 
[uncountable, countable](abbreviation Jan.)
 
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 the 1st month of the year, between December and February. To see how January is used, look at the examples at April.
See the Oxford Advanced Learner's Dictionary entry: January