The term 'FIRST OF ALL' can be broken down into five different crossword solutions: ONE (3 letters), OPENER (6 letters), ADAM (4 letters), TOSTART (7 letters), and FORSTARTERS (11 letters). The solution ONE is a word that means a single unit, while OPENER is a word that refers to something that begins or starts something. ADAM is the name of the first man in the Bible, and TOSTART is a verb meaning to begin or initiate. Finally, FORSTARTERS is a phrase used to indicate that something is the beginning of a series of events.