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a prison guard
uniformed border guards
There was an armed guard on duty outside his door.
The captain posted two guards at the gate.
members of the Presidential guard
troops belonging to the National Guard
We kept the landmines as a guard against invasion from the North.
‘Why on earth did you tell him that?’ ‘He caught me off guard!’
Small groups of men kept guard in the fields.
Armed soldiers stood guard over him.
He was taken to prison under police guard.
The Prime Minister arrived under heavy guard.
This is the British English definition of guard. View American English definition of guard.