The term 'put out a fire' is a job description that requires extinguishing a fire. To do this, one can use the crossword solutions of 'EXTINGUISH' (10 letters), 'QUENCH' (6 letters), and 'DOUSE' (5 letters). All three words mean to put out a fire by depriving it of oxygen or fuel. EXTINGUISH is the most comprehensive term, while QUENCH and DOUSE are more specific. QUENCH implies putting out a fire with water, while DOUSE implies smothering a fire with a blanket or other material.