also: おいそぎびん
noun
express delivery
Refers to a fast delivery service, often used in postal or courier contexts. The polite form お急ぎ便 is common in business settings.
この書類は急ぎ便で送ってください。
Please send these documents by express delivery.
お急ぎ便なら明日中に届きます。
If you use express delivery, it will arrive by tomorrow.
速達 is a more common term for express mail, while 急ぎ便 is often used in commercial or specific courier contexts.
Compound of 急ぎ (isogi, 'hurry') and 便 (bin, 'mail' or 'delivery').