JAXAジャクサFreq.FrequencyTop 50,000Meanings1nounJAXA; Japan Aerospace Exploration AgencyabbreviationAbbreviation for the Japan Aerospace Exploration Agency. Used as a proper noun referring to the organization.JAXAは新あたらしいロケットの打うち上あげに成せい功こうした。JAXA successfully launched a new rocket.