The crossword solutions for the term 'Welcome Sign' are MAT and OPEN. A welcome sign is a sign that is typically placed at the entrance of a building, business, or other location to greet visitors and make them feel welcome. The word MAT is an abbreviation of the word 'MATTE, ' which is a type of finish used on signs to give them a non-glare appearance. The word OPEN refers to the fact that the sign is usually placed in a visible location to indicate that the business or location is OPEN and ready to receive visitors.