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series

series /ˈsiriz/ noun
plural series
series
/ˈsiriz/
noun
plural series
Britannica Dictionary definition of SERIES
[count]
: a number of things or events that are arranged or happen one after the other usually singular often + of
: a set of regularly presented television shows involving the same group of characters or the same subject
: a set of books, articles, etc., that involve the same group of characters or the same subject
sports : a set of games that are played between two teams one after the other on different days
see also world series

in series

: one after the other in a particular order