classified ad
noun [ C ] uk/ˌklæs.ɪ.faɪd ˈæd/ us/ˌklæs.ɪ.faɪd ˈæd/ (also classified); (US also want ad)
（报刊上的）分类广告
a small advertisement that you put in a newspaper or a magazine, usually because you want to sell or buy something or to find or offer a job