Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
topographical is an adjective meaning "concerned with topography". It carries one recorded sense.
concerned with topography
“a topographical engineer”
“a topographical survey”
“topographic maps”
Definitions, synonyms and semantic relations for topographical come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.