What mean: (c.); (n.)?

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1

Hello.
I am studying at link: http://www.memrise.com/course/678454/pa-vei-norwegian/

But i don’t understand : (c.); (n.)
Example: lonely (c.) or lite (n.)

Thank for help

2

It means “common” and “neuter”, the two kinds of articles left if you join masculine and feminine.