This is the 18th most frequent Armenian word.
այլ
"Other" or "but."
In this sentence, "այլ" is used as an adjective meaning "other" or "different", modifying the noun "բան" (thing).
Ես այլ բան եմ մտածում։
I am thinking about something else.
Here, "այլևս" is a compound word where "այլ" contributes to the meaning "no longer" in conjunction with "ևս".
Դա այլևս անհնար է։
That is no longer possible.
In this context, "այլ" is used as part of the phrase "այլ կերպ", meaning "in a different way" or "differently".