* Εντάξει (entaxi): This is probably the closest single word and is very commonly used. It means "okay," "all right," "fine," or "right." It's a versatile and informal word.
* Καλώς (kalos): This means "well" or "good," and could be used in some contexts where "all right" would work.
* Μπράβο (bravo): This means "bravo" or "well done," and is appropriate only when expressing approval of something accomplished.
* Δεν πειράζει (den pirazi): This means "it doesn't matter" or "it's alright" (in the sense of something not being a problem).
To choose the best translation, you need to consider the specific nuance of "all right" you intend to convey.