This is the 3rd most frequent Armenian word.
ու
The Armenian word "ու" means "and."
Here, 'ու' is used as a conjunction, equivalent to 'and', connecting two actions.
Ես կարդացի գիրքը ու հաճույք զգացի։
I read the book and felt joy.
In this usage, 'ու' appears at the beginning of a sentence, introducing an additional related action or thought.
Ու ձայներ լսեցի գիշերվա խավարում։
And I heard voices in the darkness of the night.
Here, 'ու' connects two subjects in a compound subject, similar to 'and'.