Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
memorialise is a verb meaning "address in a memorial". It carries 2 recorded senses.
address in a memorial
“The President memorialized the heroes of the battle”
be or provide a memorial to a person or an event
“This sculpture commemorates the victims of the concentration camps”
“We memorialized the Dead”
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 memorialise come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.