A travel agent acting as principal, including those acting as undisclosed agents; or a person providing, for the direct benefit of a traveller, services of a kind enjoyed by travellers and commonly provided by tour operators or travel agents. HM Customs & Revenue Glossary
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tour operator UK US noun [C] (also tour company)
► a company that makes arrangements for travel and places to stay, often selling these together as package holidays: »
She co-founded the nation's largest tour operator for foreigners visiting the USA.
Financial and business terms. 2012.