Cases of word usage

1) an underground spring sending out hot water or steam (geyser)

2) (made of) a kind of hard, black, highly polished mineral; fast, strong stream (of gas, liquid, steam or flame) forced out of a small opening (jet)

3) steam or water vapour (on a surface) (moisture)

4) a way out (for water, steam etc); a means of or occasion (for showing one's feelings etc) (outlet)

5) (a place for) a bath in very hot steam (sauna)

6) an injury to the skin from hot liquid or steam (scald)