charm campaign is a noun meaning "a campaign of flattery and friendliness (by a company, politician, etc.) to become more popular and gain support". It carries one recorded sense.
a campaign of flattery and friendliness (by a company, politician, etc.) to become more popular and gain support
Definitions, synonyms and semantic relations for charm campaign come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.