This is the 2555th most frequent German word.
weine
"Weine" means "wines" (plural of "der Wein") or "cry" (1st-person singular or imperative of "weinen").
In this case, 'weine' is used as an imperative form addressing the second person singular to give the command 'Do not cry'.
Weine nicht, es wird alles gut!
Don't cry, everything will be alright!
Here, 'weine' is the first singular person present tense of the verb 'weinen', which means 'to cry'.
Ich weine, wenn ich traurige Filme sehe.
I cry when I watch sad movies.
Here 'weine' is used incorrectly; the correct form should be 'weinten'. This demonstrates the typical error learners make in past tense conjugation.