The term 'MAIN MALE' can be broken down into two crossword solutions: ALPHA (5 letters) and LPH (3 letters). ALPHA is a Greek letter that is used as the first letter in the Greek alphabet. It is also used to refer to someone or something that is first or of the highest rank. LPH is an abbreviation for 'Liters Per Hour, ' which is a unit of measurement used to measure the rate of flow of a liquid.