A Hash House Sign is a type of sign used to advertise a restaurant or diner. The term 'Hash House' is derived from the slang term for a diner, and the sign typically features the name of the establishment and a logo or image. The two crossword solutions for this term are 'EATS' and 'EATHERE, ' which are both four and seven letters long, respectively. EATS is an abbreviation for 'eating at the same table, ' while EATHERE is an abbreviation for 'eating together here.'