The term 'A SPADE SPADE' can be broken down into three crossword solutions: ERRS (4 letters), DUG (3 letters), and DIG (3 letters). ERRS is an abbreviation for the verb 'ERR, ' which means to make a mistake or do something wrong. DUG is the past tense of the verb 'DIG, ' which means to break up or move earth with a tool such as a spade. Finally, DIG is the present tense of the verb 'DIG, ' which has the same meaning as the past tense. All three words are related to the term 'A SPADE SPADE, ' as they all refer to the act of using a spade to move earth.