This is the 335th most frequent Armenian word.
ունեցավ
"Had" or "possessed."
Here, 'ունեցավ' denotes possession or achievement of success.
Նա ունեցավ մեծ հաջողություն իր աշխատանքի մեջ։
He had great success in his work.
The word 'ունեցա' (conjugated as 'ունեցավ' for third person) illustrates the experience of having an event.
Ես ունեցա մի հետաքրքիր հանդիպում երեկ։
I had an interesting meeting yesterday.
In this sentence, 'ունեցավ' conveys occurrence or experiencing of changes.