Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
pressurise is a verb meaning "increase the pressure on a gas or liquid". It carries 3 recorded senses.
increase the pressure on a gas or liquid
maintain a certain pressure
“the airplane cabin is pressurized”
“pressurize a space suit”
increase the pressure in or of
“The captain will pressurize the cabin for the passengers' comfort”
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 pressurise come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.