A noun that denotes a lifeless thing is said to be in the neuter gender, as it has no distinction of male or female.
Examples include objects like "table," "rock," or "book."
Tomcat means بِلّا
Cat means بِلّی
Feminine gender of Actor is Actress.
Actor means اداکار
Actress means اداکارہ
Ram means دنبہ
Lamb means میمنا
Nephew means بھتیجا
Niece means بھتیجی
A "cub" specifically refers to a young lion.
This though it can also denote the young of other carnivorous mammals like bears and tigers.
A "colt" refers to a young male horse, and the feminine counterpart is "filly," which refers to a young female horse.
Colt means الل بچھیرا جوان نر گھوڑا
Filly means بچکانا بَچھِيا
Masculine gender of Mare is Horse.
Horse means گھوڑا
Mare means گھوڑی