Matching Pairs Social media marketing Navigate B1+Online version Match words with their definitions by Lidia Tolkacheva 1 to broadcast 2 target audience 3 to engage 4 billboard 5 advertisement the particular group of people to which an advertisement, a product, a website or a television or radio programme is directed a picture, short film, song, etc. that tries to convince people to buy a product or service a very large board on which advertisements are shown to interest someone in something and keep them thinking about it/to become involved to send out a programme on television or radio/to spread information to a lot of people