superload vs live load

superload and live load both are nouns.

Word	Noun	Adjective	Verb	Adverb
superload	Yes	No	No	No
live load	Yes	No	No	No

As nouns, superload and live load are synonyms defined as:

superload and live load: a variable load on a structure (e.g. a bridge) such as moving traffic

superload (noun)	live load (noun)
a variable load on a structure (e.g. a bridge) such as moving traffic	a variable load on a structure (e.g. a bridge) such as moving traffic