This is the 2852nd most frequent Turkish word.
gelin
"Gelin" means "bride" in English.
Here, 'gelin' is used as an imperative verb meaning 'come'. It is in the polite/plural form.
Gelin, dışarıda piknik yapalım.
Come on, let's have a picnic outside.
In this sentence, 'gelin' refers to the bride and is used as a noun.
Bu hafta sonu düğüne gelecek gelin çok güzel.
The bride coming to the wedding this weekend is very beautiful.
Again, 'gelin' refers to the bride within the context of wedding traditions.