Natural gender refers to the classification of nouns based on the biological sex of the entities they represent. In languages that utilize natural gender, nouns are typically categorized as masculine or feminine, aligning with the gender of the person or animal they denote. For example, in English, "man" is masculine, while "woman" is feminine. This concept contrasts with grammatical gender, where nouns are assigned gender arbitrarily, regardless of biological sex. In some languages, such as Spanish or French, nouns can be masculine, feminine, or neuter, but natural gender specifically focuses on the inherent gender of living beings.