semantic error vs runtime error

semantic error and runtime error both are nouns.

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

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

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

Other synonyms of semantic error include run-time error.

semantic error (noun)	runtime 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