IPA: /ˌmʌltaɪˈdaɪɛktəl/
KK: /mʌltaɪˈdaɪɛktəl/
Relating to or using more than one dialect of a language.
The community is known for its multidialectal nature, with residents speaking various dialects fluently.
Multidialectal → It is formed from "multi-" (meaning many) and "dialectal" (from "dialect" which comes from Greek "dialektos", meaning conversation or language variety). The word "multidialectal" refers to the use of many different dialects or language varieties.
Think of 'multi-' meaning many, and 'dialect' referring to different forms of language. This helps you remember that 'multidialectal' means involving many dialects.
No commonly confused words.