hm 《略》 hectometer(s).

HM 《略》 His [Her] Majesty 陛下; heavy metal; headmaster, headmistress.

h'm /m, hm, hm/ int. (also hm, hmm /〜/) ＝hem^２, hum^１.

HMAS 《略》 His [Her] Majesty's Australian Ship.

HMC 《略》 heroin, morphine, and cocaine; His [Her] Majesty's Customs.

HMCS 《略》 His [Her] Majesty's Canadian Ship.

HMF 《略》 His [Her] Majesty's Forces.

HMG 《略》 His [Her] Majesty's Government.

HMI(S) 《略》 His [Her] Majesty's Inspector (of Schools).

HMNZS 《略》 His [Her] Majesty's New Zealand Ship.