Longman Dictionary of Contemporary English
trade show
noun
EXAMPLES FROM CORPUS
▪ I was tempted through the doors of the trade show.
▪ Its price at a Chicago trade show was $ 2, 000.
▪ The stage was in the center of the 1, 200-acre trade show that rotates annually between Iowa, Illinois and Indiana.
▪ Tickets to the trade show are $ 20 for two days' entry.
Wiktionary
trade show
n. A trade fair