Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
bannerlike is an adverb meaning "like a banner". It carries one recorded sense.
like a banner
“She waved her scarf at him bannerlike”
Definitions, synonyms and semantic relations for bannerlike come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.