numismatics

n [sing v] study of coins, coinage and medals 钱币学; 奖章的研究.

nuisance, null, nullification, nullify, nullity, numb, number, number one, numberless, numbly, numbness, numeracy, numeral, numerate, numeration, numerator, numerical, numerically, numerous, numinous, numismatist, numskull (also numbskull), nun, nuncio, nunnery, nuptial, nuptials, nurse, nursery, nursery nurse, nursery rhyme, nursery school, nursery slope, nursery stakes, nurseryman, nursing, nursing mother, nursing-home, nurture, nut,