As a Noun: 1. Lots of tiny particles of earth, sand, soot, etc., in the air. English = dust, haze. 2. Gas and small bits of solid material that are sent into the air when something burns. English = smoke. As a Verb or Adjective: 1. To have lots of dust or smoke particles in the air. English = (be) dusty, (be) hazy. 2. Of something that is burning, to send up gas and small bits of material into the air. English = smoke. 3. Of smoke or clouds, to rise up to form clouds or bigger clouds. English = billow.