Related Clues:

• 'For sure'
• "No fooling?"
• ''No doubt about it''
• 'Quite a hot day out' response
• "Quite a hot day out" response
• "Are you serious?"
• Honestly, it's a fact
• Actually, in fact
• You may be sure - gamble on it
• In actual fact
• Truly, actually
• It's a certainty - put wager on it
• In fact, truly
• Actually, truly
• Actually, no kidding