The term 'Big Name in Porcelain' can be summarized by the crossword solution SPODE, which is a five-letter word. SPODE is a British pottery and porcelain manufacturer that was founded in 1776 by Josiah Spode. The company is known for its high-quality bone china, which is still produced today. SPODE is one of the most recognizable names in the porcelain industry and is considered a big name in the field.