Felids is a term used to describe the family of cats, including big cats like lions and tigers, as well as smaller felines like domestic cats. There are several synonyms for this word, including felines, cats, wildcats, and pantherines. Each of these words describes a different aspect of the family of cats, and each has its own unique connotations. Felines, for example, is a more general term that can be used to describe any member of the cat family, while pantherines specifically refers to the big cats of the family, including panthers and jaguars. Regardless of the term used, one thing is certain - the felids are a fascinating and important group of animals in our world today.