sodium hydroxide (also ,caustic `soda)

white corrosive solid used in making paper, aluminium and soap 氢氧化钠; 烧碱.

socially, society, socio-, sociological, sociologically, sociologist, sociology, sociopath, sock, socket, sod, soda, soda siphon, soda-fountain, soda-water, sodden, sodding, sodium, sodium carbonate (also `washing soda), sodium chloride, sodomite, sodomy, sofa, soft, soft currency, soft drug, soft fruit, soft landing, soft option, soft palate, soft porn, soft shoulder, soft soap, soft-boiled, soft-drink, soft-hearted, soft-heartedness, soft-pedal, soft-soap, soft-spoken,