Because

ведь

vedʹ

(by or for the cause that; on this account that; for the reason that)

и́бо

íbo

(by or for the cause that; on this account that; for the reason that)

поне́же

ponéže

(by or for the cause that; on this account that; for the reason that)

поско́льку

poskólʹku

(by or for the cause that; on this account that; for the reason that)

потому́ что

potomú što

(by or for the cause that; on this account that; for the reason that)

потому́ что

potomú što

(as known because; as inferred because; as determined because)

та́к как

ták kak

(by or for the cause that; on this account that; for the reason that)

потому́ что

potomú što

(word used in place of an answer to "why")