Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
ostensive is an adjective meaning "manifestly demonstrative". It carries 2 recorded senses.
manifestly demonstrative
represented or appearing as such; pretended
“His ostensible purpose was charity, his real goal popularity”
Definitions, synonyms and semantic relations for ostensive come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.