IPA: /ˈmʌltiˌstɔːrɪd/
KK: /mʌltiˈstɔːrɪd/
Having multiple levels or floors, typically used to describe buildings.
The new apartment complex is a multistoried building with ten floors.
Multistoried → It is formed from "multi-" (meaning many) and "story" (from Old French *estorie*, meaning a floor or level of a building) and the suffix "-ed" (indicating a state or condition). The word "multistoried" describes a building that has many levels or floors.
Think of 'many' ('multi-') levels or 'stories' in a building — that's why multistoried means having many floors.
No commonly confused words.