spy on somebody phrasal verb ( see also ↑ spy )
to watch someone secretly in order to find out what they are doing:
She sent you to spy on me, didn’t she?
spy on somebody phrasal verb ( see also ↑ spy )
to watch someone secretly in order to find out what they are doing:
She sent you to spy on me, didn’t she?
Longman Dictionary of Contemporary English. Longman - Словарь современного английского языка. 2012