run-time error vs runtime error

run-time error and runtime error both are nouns.

Word	Noun	Adjective	Verb	Adverb
run-time error	Yes	No	No	No
runtime error	Yes	No	No	No

As nouns, run-time error and runtime error are synonyms defined as:

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

Other synonyms of run-time error include semantic error.

run-time 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