meniscus vs natural philosophy

meniscus and natural philosophy both are nouns.

Word	Noun	Adjective	Verb	Adverb
meniscus	Yes	No	No	No
natural philosophy	Yes	No	No	No

meniscus (noun)	natural philosophy (noun)
(physics) the curved upper surface of a nonturbulent liquid in a vertical tube	the science of matter and energy and their interactions
(optics) a lens that is concave on one side and convex on the other
(anatomy) a disk of cartilage that serves as a cushion between the ends of bones that meet at a joint