A concessionaire is the person or company that has been given the right to sell something in a place they do not own — food and souvenirs in a stadium, drinks in a theatre, a stall at an airport. The right (or the stall) is the concession; the concessionaire is the one who holds it.

A concessionaire is the person or company that has been given the right to sell something in a place they do not ownConcessionaire 是被授權在不屬於自己的場地裡賣東西的人或公司——food and souvenirs in a stadium像是體育場裡賣食物紀念品的、drinks in a theatre劇院裡賣飲料的、a stall at an airport機場裡的攤位。The right (or the stall) is the concession那個權利（或那個攤位）就是 concession，the concessionaire is the one who holds it而握有這個權利的人就是 concessionaire。

In a more official register, a government can also grant a concession to run a road, a mine, or a public service, and that holder is a concessionaire too. It is a business and legal word, not a casual one for any shop on the street.

In a more official register用更正式的說法，a government can also grant a concession to run a road, a mine, or a public service政府也可以把經營一條路、一座礦，或一項公共服務的特許權授予出去，and that holder is a concessionaire too那個持有者一樣叫 concessionaire。It is a business and legal word這是個商業和法律用詞，not a casual one for any shop on the street不是隨便街上一家店都能用的隨性說法。

The point is the special permission. You would not call an ordinary baker a concessionaire just because they sell bread. Borrowed from French concessionnaire.

The point is the special permission重點在於那份「特許」。You would not call an ordinary baker a concessionaire你不會叫一個普通麵包師傅 concessionaire，just because they sell bread只因為他有賣麵包。Borrowed from French concessionnaire這個字是從法文 concessionnaire 借來的。