Bilateralism, the concept of engaging two parties or groups equally, is a commonly used synonym for the term "bi laterality". Other similar words that can be used include dualism, which means the division of something into two equal parts or aspects. Another synonym is bipartisanship, which denotes cooperation between two political parties or groups, while bicameralism refers to a legislature that has two branches or chambers. Bilaterally symmetrical, which is a term used in biology to describe organisms with a symmetrical body plan consisting of two identical halves, is also related to the concept of bi laterality. In essence, bi laterality and its synonyms all refer to the idea of two equal and complementary parts or aspects.