The word series seems to generally refer to a group which I would think makes it a singular reference, however the ies ending is also a common way to modify a singular noun into a plural noun (eg., puppies, fancies, harpies).

So is series plural or singular, and if plural, what is the singular version?


Series is singular and doesn’t change in the plural. Its spelling originates from Latin:

1610s, "a number or set of things of one kind arranged in a line," from Latin series "row, chain, series, sequence, succession".


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    Series is plural and doesn't change in the singular. – Sparhawk Oct 20 '18 at 8:39

"Series" can be singular or plural depending on context.

I like to watch TV series.

Uses series as a plural and means you like to watch a number of different TV shows.

I like to watch a TV series.

Uses series as singular and means you like to watch one TV show.

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