leg vs nervus ischiadicus

leg and nervus ischiadicus both are nouns.

Word	Noun	Adjective	Verb	Adverb
leg	Yes	No	No	No
nervus ischiadicus	Yes	No	No	No

leg (noun)	nervus ischiadicus (noun)
a section or portion of a journey or course	arises from the sacral plexus and passes about halfway down the thigh where it divides into the common peroneal and tibial nerves
(nautical) the distance traveled by a sailing vessel on a single tack
a cloth covering consisting of the part of a pair of trousers that covers a person's leg
one of the supports for a piece of furniture
a prosthesis that replaces a missing leg
a human limb; commonly used to refer to a whole limb but technically only the part of the limb between the knee and ankle
a structure in animals that is similar to a human leg and used for locomotion
the limb of an animal used for food
a part of a forked or branching shape