runtime error vs semantic error

runtime error and semantic error both are nouns.

Word	Noun	Adjective	Verb	Adverb
runtime error	Yes	No	No	No
semantic error	Yes	No	No	No

As nouns, runtime error and semantic error are synonyms defined as:

runtime error and semantic error: an error in logic or arithmetic that must be detected at run time

Other synonyms of runtime error include run-time error.

runtime error (noun)	semantic error (noun)
an error in logic or arithmetic that must be detected at run time	an error in logic or arithmetic that must be detected at run time