ad
noun/æd/ 
(informal)
Thesaurus: advertisementpublicity 
ad commercial promotion previewThese are all words for a notice, picture, or short movie telling people about a product, job, or service.advertisement a notice, picture, or short movie telling people about a product, job, or service; an example of something that shows its good qualities; the act of advertising something and making it publicpublicity [U] the business of attracting the attention of the public to someone or something, such as a company, book, movie, movie star, or product; the things that are done to attract attention: She works in publicity. Her new movie has received a lot of publicity.ad (informal) a notice, picture, or short movie telling people about a product, job, or service: We put an ad in the local paper. an ad for a new candy barcommercial an advertisement played during a television, radio, or online showpromotion a set of advertisements for a particular product or service; activities done in order to increase the sales of a product or service: a special promotion of local products The store is running a promotion on its gourmet coffees.preview a series of short scenes from a movie or television program, shown in advance to advertise itpatterns(a/an) advertisement/publicity/ad/commercial/promotion/preview for somethinga TV/television/radio/cinema advertisement/ad/commercial/promotionto run/show a(n) advertisement/ad/commercial/preview