SINCE 1828
\ ˈīdz
\
\
Definition of ides
: the 15th day of March, May, July, or October or the 13th day of any other month in the ancient Roman calendar
broadly
: this day and the seven days preceding it
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The first known use of ides was in the 15th century
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ides
noun
English Language Learners Definition of ides
: the 15th day of March, May, July, or October or the 13th day of any other month in the ancient Roman calendar
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