1. The disposition to favour one or more persons or classes to the neglect of others having equal claims.

Nuttall's Standard dictionary of the English language By Nuttall, P.Austin

• favoritisem,
• favouritism,
• favourites,
• favoriteism,
• favoritisim,
• favortism,
• favoritsm,
• favourtism,
• favoratism,
• favourits,
• favourism,
• favoritisms,
• favoritism,
• davouritism,
• cavouritism,
• vavouritism,
• gavouritism,
• tavouritism,
• ravouritism,
• favouritsm

• favourite,
• Favourite Son,
• favoritism,
• favorite.

The adjective form of the word "favouritism" is "favouritistic". However, it is more common to use the term "favoritism" as an adjective.

The plural of the "favouritism" can be the "favouritisms".

The singular of the "favouritism" can be the "favouritism".