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
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Don't see your shade think you are great

[Yankee]

I wouldn't use 'against'. The usual preposition would be 'for'.
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Amy
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ESL teacher, translator, and a native speaker of American English