The proof ___ the pudding

• ''The check ___ the mail''
• Has office hours
• 'The Doctor --'
• " . . . ___ the eating thereof"
• "Love ___ the air": 2 wds
• "Beauty __ the eye . . ."
• ''The proof of the pudding ___ . . .''
• "... pudding ___ the eating": Cervantes
• "Groove ___ the Heart" (1990 Deee-Lite hit)

Wikipedia Word definitions in Wikipedia
Isin is an ancient city in Mesopotamia. Isin or ISIN may also refer to: Isin Rural District , in Iran Isin, Kwara International Securities Identification Number