I . n.
1.
Vapor ( especially of water ), water in a gaseous state.
2.
Visible vapor.
3.
Mist, fume, reek, smoke, exhalation, effluvium.
II . v. n.
1.
Emit vapor, fume.
2.
Evaporate, pass off in vapor.
3.
Navigate ( by means of ~ ), plough the deep, plough the waves.