Edouard Lemaitre is a name that is unique and not typically associated with any synonyms. However, there are other ways to refer to him, such as using his professional title. Lemaitre was a Belgian astronomer and priest, so he could be referred to as "Father Lemaitre" or "Father Astronomer." Additionally, since he is best known for his theory on the expansion of the universe, he could also be referred to as the "Father of the Big Bang," or simply the "Big Bang Theory Originator." Regardless of how you refer to him, Lemaitre's contributions to the field of cosmology will always be significant.