The term 'SPEAKS SILENTLY' can be solved by the crossword answer 'SIGNS'. SIGNS are a form of communication that conveys a message without the use of words. They are often used to convey warnings, instructions, or directions. SIGNS can be found in many places, such as on roads, in public buildings, and in businesses. SIGNS are also used to advertise products and services. SIGNS can be made from a variety of materials, including wood, metal, plastic, and paper.