素 （ソ） plain, white silk, prime

素案 （ソアン） rough plan, draft

栄養素 （エイヨウソ） nutrient

酵素 （コウソ） enzyme

素 （ス） one's nature, one's feelings, oneself, plain, unadorned, undecorated, unadulterated, au naturel, mere, poor, exceedingly

素顔 （スガオ） face with no make-up, unpainted face, true face (of a country, celebrity, etc.), real face, true picture, real nature, sober face, sobriety

空素 （カラス） dealt hand containing only 1-point cards (scoring combination)

鉤素 （ハリス） snell (fishing), leader, trace, cast

元 （もと） origin, source, base, basis, foundation, root, cause, ingredient, material, base, mix, stock, (someone's) side, (someone's) location, original cost (or capital, principal, etc.), (plant) root, (tree) trunk, first section of a waka, counter for blades of grass, tree trunks, etc., and for falcons (in falconry), handle (chopsticks, brush, etc.), grip

元より （もとより） from the beginning, from the first, all along, originally, of course

味の素 （あじのもと） Ajinomoto, brand name of monosodium glutamate (MSG)