Nouns are classified into three genders: masculine for males, feminine for females, and common for those that can be either. Masculine nouns include bachelor, hero, and gentleman while feminine include spinster, heroine, and lady. Common gender nouns can refer to both sexes such as doctor, engineer, teacher, elephant, and crocodile.

2. GENDER (MASCULINE GENDER) Nouns representing the male sex belong to the Masculine gender. Nouns representing the female sex belong to the Feminine gender. Nouns that can represent the male sex or the female sex belong to the Common gender.

3. EXAMPLES Masculine Gender Feminine Gender Bachelor Spinster Hero Heroine Gentleman Lady Dog Bitch Tiger Tigress

4. COMMON GENDER Common Gender Doctor Engineer Teacher Elephant Crocodile