Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
orientate is a verb meaning "determine one's position with reference to another point". It carries one recorded sense.
determine one's position with reference to another point
“We had to orient ourselves in the forest”
Forms marked · are formed by the regular rule rather than recorded in the source data. English keeps a few hundred irregulars and the rest follow the pattern, so the rule is right far more often than not — but it is a rule, and the mark says so.
Definitions, synonyms and semantic relations for orientate come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.