emit emit /ɪˈmɪt/

verb

1. () Expel (gases or odors)  ( breathe , pass off , emit )
   expel (gases or odors)
     The smokestacks emit harmful pollutants into the air.
   The smokestacks emit harmful pollutants into the air.
   
2. () Give off, send forth, or discharge; as of light, heat, or radiation, vapor, etc.  ( give off , emit , give out )
   give off, send forth, or discharge; as of light, heat, or radiation, vapor, etc.
    The ozone layer blocks some harmful rays which the sun emits
   The ozone layer blocks some harmful rays which the sun emits
   
3. Express audibly; utter sounds (not necessarily words)  ( emit , let loose , let out , utter )
   express audibly; utter sounds (not necessarily words)
    She let out a big heavy sigh
   She let out a big heavy sigh
    He uttered strange sounds that nobody could understand
   He uttered strange sounds that nobody could understand