The term 'Slave Away' is a phrase used to describe hard work and LABOR. The crossword solutions for this term are 'LABOR' (5 letters) and 'TOIL' (4 letters). LABOR is defined as physical or mental work done to achieve a purpose or result, while TOIL is defined as hard, tiring work. Both terms can be used to describe the same type of hard work, but LABOR is usually used to describe work that is done for a longer period of time.