vapor

/ˈveɪpər/
verb
  1. To change into vapor; to evaporate or disappear like vapor.
    • The chemical will vapor if exposed to air for too long.
    • The puddle vaporized under the hot sun within an hour.
    • As the liquid heated, it began to vapor into a gas.
  2. To boast or talk in a way that is not serious or meaningful.
    • He spent the whole evening vaporing about his imaginary adventures.
    • The politician vapored on stage, offering no real solutions.
    • Stop vaporing and tell us what really happened.
noun
  1. A substance that is in the form of a gas, especially when it is caused by heat or moisture in the air.
    • Water vapor in the air can make a hot day feel even more humid.
    • The morning sun turned the dew into a thin vapor above the grass.
    • Steam is the vapor that rises from boiling water.
  2. A mist or fog that is visible in the air, often from breath or a machine.
    • A cloud of vapor rose from the hot pavement after the rain.
    • He could see his breath turn to vapor in the cold winter air.
    • The machine released a cool vapor that filled the room.
  3. Something that is not real or solid; an idea or feeling that disappears quickly.
    • The argument was just vapor — it had no real basis.
    • His hopes of winning the lottery vanished like vapor.
    • She dismissed his promises as vapor, knowing he never followed through.
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Antonyms