ground crew:
(also ‘ground staff‘; plural: (a group word) but less commonly: ‘ground crews; pronunciation: the letter ‘g’ in this word rhymes with the letter ‘g’ in the word “garden” — for the right pronunciaiton, please click here)

ground crew laying cables
a team (group) of people (technicians and mechanics) at an airport whose job is to take care of the aeroplanes when the aeroplanes are on the ground, before and after flying — cleaning, refuelling, checking pressure, etc.;
a team (group) of men employed at a sports field (stadium) or large gardens to take care of the grass, the sports equipment, etc., and sometimes to play in matches of less importance,

airport ground crew preparing a flight
At an airport a member of the ground crew is as important as any other employee.
Though they are not on TV or in the pictures as much as the players and organisers of any sports event, the ground crew or ground keepers work very hard in keeping stadiums and sports fields levelled and clean for the players to play comfortably.
During a forest fire, the ground crew of the fire department meet with challenges that ordinary or untrained people cannot even imagine.

stadium ground crew preparing the pitch for cricket match
For an article that shows us how we come across this phrase in our daily browsing, please click here, for an article that explains different categories of ground crew, please click here, for an item of news about the ground crew, please click here, for an item of news about ground crew at an airport, please click here and for an item of news about fire department ground crew, please click here.
