From Longman Dictionary of Contemporary Englishtrade fairˈtrade fair noun [countable] BBTa large event when several companies show their goods or services in one place, to try to sell them SYN trade show
Examples from the Corpus
trade fair• Two months ago 1,450 firms from 30 countries laid out their wares at a trade fair.• Eighty countries plan to attend the Baghdad trade fair in November.• A concurrent trade fair will comprise stands of about fifty museums, exhibition specialists and suppliers.From Longman Business Dictionarytrade fairˈtrade fair MARKETINGan event at which many different companies involved in a particular area of business show and sell their productsSYNTRADE SHOW → fair 