Betray surprise is an expression used to describe a situation in which someone is unexpectedly betrayed. The crossword solutions for this term are GASP (4 letters), START (5 letters) and STARE (5 letters). GASP is an expression of shock or surprise, usually uttered when one is betrayed. START is another expression of surprise, often used when one is taken aback by something unexpected. STARE is a reaction to something unexpected, usually involving wide eyes and a look of disbelief. Together, these three words capture the feeling of betrayal surprise.