swear by
Pronunciation:
verb
Definitions
To invoke in an oath; to swear upon.
To trust wholeheartedly.
Example: I swear by my Petit Larousse when it comes to learning French.
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Definitions
To invoke in an oath; to swear upon.
To trust wholeheartedly.
Example: I swear by my Petit Larousse when it comes to learning French.