Nucleotide is a term that refers to a molecule that is essential in the formation of DNA and RNA. There are a number of synonyms for this word, including base, monomer, and building block. These terms all refer to the fundamental unit that is used in the construction of genetic material. Other possible synonyms for nucleotide include purine, pyrimidine, and nitrogenous base. These words are used to describe different components of nucleotides that play different roles in genetic processes. While each of these terms may have slightly different connotations or associations, they all refer to the same basic building block of genetic material.