Austrasia rhymes with:
eurasia, anastasia, aphasia, asia, australasia, dysplasia, eurasia, euthanasia, fantasia, hyperplasia, malaysia
Austrasia sounds like:
actor's, actors, actors', actress, actress's, actresses, actuaries, actuators, agitators, ashtrays, asterisk, asters, astor's, astorga, astra's, astros, austria's, awestruck