The crossword solution for the term 'MANY A BOTTOM LINE' is SUM, which is a three-letter word. SUM is an abbreviation of the word 'SUMMARIZE, ' which means to condense a large amount of information into a brief summary. This term is often used in business to refer to the total amount of money that a company has earned or spent over a certain period of time. In other words, it is the financial bottom line of a company.