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advertiser

[ad-ver-tahy-zer] / ˈæd vərˌtaɪ zər /
NOUN
forerunner
Synonyms
STRONGEST
precursor
STRONG
advocate ancestor announcer author envoy harbinger initiator originator pioneer progenitor prognostic prototype
WEAK
forebearer foregoer
Antonyms
WEAK
result
NOUN
promoter
Synonyms
STRONGEST
advocate backer booster organizer publicist sponsor
STRONG
ally endorser follower
Antonyms
STRONGEST
antagonist

From Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.