Become Hazy is a term used to describe a situation in which visibility is reduced due to the presence of fog, SMOG, or other atmospheric conditions. The four crossword solutions for this term are BLUR (4 letters), BLURS (5 letters), Fogs (4 letters), and SMOG (4 letters). BLUR is a verb meaning to make something less distinct or clear, while BLURS is the plural form of the same word. Fogs is the plural form of Fog, which is a noun describing a thick cloud of tiny water droplets suspended in the atmosphere near the ground. Finally, SMOG is a combination of smoke and fog that is created when pollutants from burning fossil fuels mix with air moisture.