The term 'BIG NAME IN LITTLE BRICKS' can be solved by the four letter word LEGO. LEGO is a Danish toy company that produces plastic interlocking bricks and other construction sets. The company is known for its iconic brick design, which has been used to create a variety of toys, including models of buildings, vehicles, and characters from popular media franchises. LEGO has become one of the world's most recognizable brands, and its products are popular with children and adults alike.