蒸気【じょうき】
steam, vapour, vapor, steamboat, steam locomotive
蒸す【むす】
to steam (food, towel, etc.), to be hot and humid, to be sultry
水蒸気【すいじょうき】
water vapour, water vapor, steam
蒸発【じょうはつ】
evaporation, disappearance (of a person), vanishing without a trace
蒸し暑い【むしあつい】
humid, sultry
蒸し返す【むしかえす】
to reheat, to steam over, to bring up again (a problem that has been dealt with), to take up again, to drag up, to rehash