Roman Jakobson was a prominent Russian-American linguist whose work had wide-ranging impacts on various fields of study. Synonyms for Jakobson may include "semiotician," as he was interested in the study of signs and symbols. He was also a "structuralist," as he believed that underlying structures in language could be identified and analyzed. Jakobson was renowned for his "phonological" investigations, which dealt with the sounds of language and how they are organized within a system. Additionally, he was a "poetics" scholar, focusing on literary structure and meaning. Finally, Jakobson was a "cultural theorist," examining the interplay between language, art, and society.