crasher vs interloper

crasher and interloper both are nouns.

Word	Noun	Adjective	Verb	Adverb
crasher	Yes	No	No	No
interloper	Yes	No	No	No

As nouns, interloper is a hypernym of crasher; that is, interloper is a word with a broader meaning than crasher:

crasher: someone who gets in (to a party) without an invitation or without paying
interloper: someone who intrudes on the privacy or property of another without permission

Other hypernyms of crasher include intruder, trespasser.

crasher (noun)	interloper (noun)
someone who gets in (to a party) without an invitation or without paying	someone who intrudes on the privacy or property of another without permission