Vapor is a type of GAS that is in the air and can be seen in many forms. The crossword solutions for vapor include CLOUD (5 letters), HAZE (4 letters), FOG (3 letters), MIST (4 letters), FUME (4 letters), STEAM (5 letters), GAS (3 letters), and REEK (4 letters). CLOUD is a visible mass of condensed water droplets suspended in the atmosphere, while HAZE is a light obscuring phenomenon caused by dust, smoke, or other atmospheric particles. FOG is a collection of tiny water droplets suspended in the air near the ground, and MIST is a thin FOG with droplets so small they can float in the air. FUME is an airborne suspension of fine solid particles, while STEAM is the gaseous form of water created by boiling. GAS is a state of matter in which a substance has no fixed shape or volume, and REEK is an unpleasant smell.