This is the 5th most frequent Armenian word.
հետ
"հետ" - "with" or "after" (context-dependent).
In this sentence, the word 'հետ' denotes accompaniment or being with someone.
Ես գնացի ընկերոջ հետ։
I went with my friend.
Here, 'հետ' implies conversing or engaging communication with someone.
Նա խոսեց ինձ հետ։
He/she spoke with me.
In this context, 'հետ' is used to indicate dealing or interacting with something.