Meaning of だいじょうぶ in Japanese

Definition of だいじょうぶ

だいじょうぶ(daijoubu) 【大丈夫】

(adj-na, adv, n) safe; all right; OK; okay
彼女は今のところ大丈夫です。
She is all right at the moment.

だいじょうぶっきょう(daijoubukkyou) 【大乗仏教】

「・・・おい・・・おい、先生せんせい！」「え？・・・あ、ああ」「マジだいじょうぶ？休講きゅうこうにしたらする？」

"...Hey...Hey, teacher!" "Eh? Oh." "Are you really OK? Shouldn't you cancel the lesson?"

I was asked, "You OK, kid?". I replied, "Fine."