advertisement advertisement /ədˈvɜːrtɪsmənt/

noun

1. () A public promotion of some product or service  ( advert [British] , advertizement [American, Non-standard] , advertizing [American, Non-standard] , ad [Informal] , advertisement , advertising )
   a public promotion of some product or service
    I saw an advertisement for a new movie during the commercial break
   I saw an advertisement for a new movie during the commercial break