Catering is the business of supplying food for an event. A catering company, do the catering, catering staff.
Outside catering means food brought in rather than cooked on site. Catering is also the whole industry of feeding people commercially — the catering trade, catering college. As a verb, cater for means to provide what a group needs, and it is used far beyond food: cater for all abilities. Note caterer; and that self-catering accommodation is a holiday flat where you cook for yourself.
1nouncateringThe business of supplying food for an event.
“Her aunt runs a small catering business that does weddings and parties.”
Patternoutside catering · a catering company / firm · do the catering · self-catering
catering is a food service.
CATERing → they CATER for a hundred guests
They bring the food, the plates and the waiters for your wedding, and take it all away after: that business is catering.