groundstaff en · NOUN
Etymology
From ground + staff.
Meanings
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(plural, plural-only) The staff who maintain the grounds of a school, sports facility, etc.
The United players refused to leave, and a dispute broke out between the players and Chelsea stewards and groundstaff before the incident was resolved.
2008 April 27, Bloomberg News, “Ballack Gets Chelsea Even in the Premier League”, in New York Times: