Gender Nouns:
1. Husband - Wife
2. Host - Hostess
3. Landlord - Landlady
4. Master - Mistress
5. Lad - Lass
6. Bridegroom - Bride
7. Wizard - Witch
8. King - Queen
9. Gentleman - Lady
10. Bachelor - Spinster
11. Monk - Nun
12. Nephew - Niece
13. Father - Mother
14. Actor - Actress
15. Uncle - Aunt
16. Heir - Heiress
17. Emperor - Empress
18. Baron - Baroness
19. Priest - Priestess
20. Prince - Princess