aitchbone

n (a) rump-bone of an animal 动物的臀骨. (b) piece of beef cut from the part above this bone （牛的）臀骨肉.

airline, airliner, airlock, airmail, airman, airplane, airport, airship, airsick, airsickness, airspace, airtight, airway, airwoman, airworthiness, airworthy, airy, airy-fairy, aisle, aitch, ajar, aka, akimbo, akin, Alabama, alabaster, alacrity, alarm, alarm clock (also alarm), alarmed, alarming, alarmist, alas, Alaska, albatross, albeit, Albert Einstein, albino, album, albumen,