Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
scrutinise is a verb meaning "to look at critically or searchingly, or in minute detail". It carries 2 recorded senses.
to look at critically or searchingly, or in minute detail
“he scrutinized his likeness in the mirror”
examine carefully for accuracy with the intent of verification
“audit accounts and tax returns”
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 scrutinise come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.