Eg, lion or tiger

Longman Dictionary of Contemporary English Word definitions in Longman Dictionary of Contemporary English
noun EXAMPLES FROM CORPUS ▪ A poster for the local paper on the wall next to the newsagent claims boldly that another big cat has been seen. ▪ As it came near he quickly lowered the camera and directed a wide-eyed stare, straight at the big cat . ▪ In fact ...

Wikipedia Word definitions in Wikipedia
The informal term " big cat " is typically used to refer to any of the four largest (living) members of the entire Panthera genus . Among the five total species within the Panthera genus , these four are the only animals that are able to roar . In descending ...

WordNet Word definitions in WordNet
n. any of several large cats typically able to roar and living in the wild [syn: cat ]

Wiktionary Word definitions in Wiktionary
n. Large feline animals. Especially members of the panthera genus - tigers, lions, jaguars and leopards.