Grade 6 advertiser's Get Printable Handwriting Hear It! Say It! Write It! Learn It! Spelling Test Definition possessive noun. one to present as good or favorable in order to win people's business or support. Example Sentence I heard the advertiser's commercial on TV. Synonyms publicize; proclaim; announce Antonyms hide; conceal Hear It! Say It! Write It! advertiser's Switch to cursive Start Share with your friends: