IPA: /ˈmʌl.tɪ.deɪ/
KK: /mʌlˈtaɪ/
Describing something that lasts for more than one day.
The multiday event attracted participants from all over the country.
Multiday → It is formed from "multi-" (from Latin "multus", meaning many) and "day" (from Old English "dæg", meaning a period of 24 hours). The word "multiday" refers to a period that spans multiple days.
Think of 'many' ('multi-') days ('day') to remember that 'multiday' means a span of several days.
No commonly confused words.