trainer
The word 'allenatore' is used in Italian to refer to a person who trains or coaches others, often in the context of sports. It is a masculine noun and is used in the same way as the English word 'trainer'.
The coach gave clear instructions to the players.
In this sentence, 'L'allenatore' refers to a sports coach who has provided clear directions, presumably about strategy or form, to the members of their team.
I'm looking for a tennis coach.
This sentence implies the speaker is currently in search of a coach, specifically one who can teach or train them in the sport of tennis. 'Sto cercando' means 'I am searching'.
The coach changed the formation of the team.
In this context, the phrase refers to a situation in which a coach, 'L'allenatore', has decided to alter the existing team formation, possibly to better its performance or adapt to a particular strategy.