metronome

n (music 音) device, usu with an inverted pendulum that can move back and forward at various speeds, which is used by a musician to mark time 节拍器.

Methodist, methodological, methodologically, methodology, meths, methyl alcohol, methylated, methylated spirits, meticulous, meticulously, meticulousness, metier, metre, metre (US meter), metric, metric ton, metrical, metricate, metrication, Metro, metropolis, metropolitan, Metropolitan France, mettle, mettlesome, Meuse Valley, mew, Mew Jersey, mews, Mexican, Mexico, mezzanine, mezzo, mezzo-soprano, mezzotint, MF, mg, Mgr, MHz, mi,