advertisement an announcement informing people about a product, service, or event, for example in a newspaper, or on the television, radio, or the Internet 广告（在报纸、电视、广播或因特网上告知人们有关某一产品或服务或事件的启事）

advert British ( informal) an advertisement: 广告: I saw their advert in the paper.我在报纸上看见他们的广告了。

ad ( informal) an advertisement: 广告: Try placing an ad in the local paper.试着在当地报纸上登一则广告。

commercial an advertisement on the television or radio （电视或电台广播中的）商业广告

billboard a large outdoor sign used for advertising, usually placed in a busy area （通常置于闹市区的）户外广告牌

poster a large piece of paper, usually with a picture on it, used for advertising: 海报（一大张纸，通常印有图片，用来做广告）: Campaign posters appeared everywhere in the weeks before the election.选举前的几星期里到处都是竞选海报。

flyer a piece of paper advertising a product, service, or event, that is given to people on the street or delivered to their homes （在街头分发或送至家庭的）广告传单

slogan a short clever sentence or saying used in an advertisement for a particular product 标语（简短醒目的广告语）

campaign a planned series of posters, advertisements, and events used for advertising something: （包括一系列广告活动的）宣传活动: a big, government-sponsored campaign to promote tourism in the region政府主办的旨在促进该地区旅游事业发展的一场大型宣传活动

the classified ads small advertisements in a newspaper or magazine, often placed by private individuals rather than by companies: （常由个人而非公司登在报纸或杂志上的）分类广告: Try looking in the classified ads for cheap secondhand furniture.查查分类广告，看看有没有便宜的二手家具。

the small ads British a more informal word for ‘the classified ads' 小广告（分类广告的较为非正式的说法）

the personal ads a section in a newspaper or magazine where people advertise when they want to meet someone to have a relationship with 个人广告（登在报纸、杂志上的交友广告）