Difficult preposition: I left my gold watch as security ... the money I owed him.

[Duc]

I left my gold watch as security ...... the money I owed him.

Please tell whether I can use the preposition ''against'' in the blank?

THANK YOU :lol:
_________________
Don't see your shade think you are great

[Yankee]

I wouldn't use 'against'. The usual preposition would be 'for'.
.
_________________
"Nearly all men can stand adversity, but if you want to test a man's character, give him power." ~ Abraham Lincoln