This is the 466th most frequent Armenian word.
մեկն
"One" or "someone."
Here, "մեկն" ('someone') is used as an indefinite pronoun conveying the meaning of 'a person'.
Մեկն ասաց, որ վաղն անձրև կգա։
Someone said that it will rain tomorrow.
In this sentence, "մեկն" ('one') functions demonstratively to indicate a specific entity within a group.
Նա մեկն էր, ով զարմացրեց բոլորին։
He was one who surprised everyone.
Here, "մեկն" ('one') is used numerically to denote a single, unique entity.