The term 'Lavatory Sign' refers to a sign that is used to indicate the location of a restroom. The crossword solutions for this term are GENTS (5 letters), MEN (3 letters), and INUSE (5 letters). GENTS is an abbreviation for gentlemen, which is used to indicate that the restroom is for male use only. MEN is a shortened version of the word MEN, which also indicates that the restroom is for male use only. INUSE is an abbreviation for in use, which is used to indicate that the restroom is currently occupied and not available for use.