king of beasts vs lion

king of beasts and lion both are nouns.

Word	Noun	Adjective	Verb	Adverb
king of beasts	Yes	No	No	No
lion	Yes	No	No	No

As nouns, king of beasts and lion are synonyms defined as:

king of beasts and lion: large gregarious predatory feline of Africa and India having a tawny coat with a shaggy mane in the male

Other synonyms of king of beasts include Panthera leo.

king of beasts (noun)	lion (noun)
large gregarious predatory feline of Africa and India having a tawny coat with a shaggy mane in the male	large gregarious predatory feline of Africa and India having a tawny coat with a shaggy mane in the male
	a celebrity who is lionized (much sought after)