chances are

副詞

慣用表現比較不可

(idiomatic) It is likely that, it is probable that

日本語の意味

おそらく / たぶん / ～だろう

If you leave your passport on the table, chances are you'll miss your flight.

もしパスポートをテーブルに置き忘れれば、飛行機に乗り遅れる可能性が高いです。

意味（1）

(idiomatic) It is likely that, it is probable that

If you leave before 7, chances are you'll miss the traffic.