Hit it off is an idiom that means to get along well with someone, usually when first meeting them. The crossword solutions for the term 'Hit it off' are 'CLICK' (5 letters) and 'START' (5 letters). CLICK is a verb that means to press a button on a computer mouse or other device to activate a function. START is a verb that means to begin or initiate something. Therefore, the crossword solutions for the term 'Hit it off' can be interpreted as pressing a button to begin getting along with someone.