Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
high-ranking is an adjective meaning "at an elevated level in rank or importance". It carries one recorded sense.
at an elevated level in rank or importance
“a high-level official”
“a high-level corporate briefing”
“upper-level management”
Definitions, synonyms and semantic relations for high-ranking come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.