Exclamations of surprise are words or phrases that are used to express shock, astonishment, or disbelief. The three crossword solutions for this term are OHS (3 letters), OOHS (4 letters), and HEYS (4 letters). OHS is an exclamation of surprise that is usually uttered in a low voice. OOHS is an expression of surprise that is often accompanied by a gesture of raising one's hands. HEYS is an exclamation of surprise that is usually shouted out loud.