お久しぶりです (Ohisashiburi desu) means "Long time no see" or "It has been a long time." You use this greeting when you meet someone you haven't seen for a significant period. It's a friendly and common way to acknowledge the time that has passed since your last encounter.

長い間会っていなかった人に使う挨拶です。再会を喜ぶ気持ちを表します。