noun which may take the genitive case particle 'no', na-adjective, noun
diverse; various; wide-ranging
Formal or written-sounding word for something branching into many areas or covering a broad variety. Very often used in the set pattern 多岐にわたる, meaning 'to cover a wide range.'
See also: 多岐にわたる
His research topics cover a wide range.
Various issues were brought up at the meeting.
The discussion branched off in many directions, and it was hard to reach a conclusion.
様々 is an everyday word for 'various', whereas 多岐 is more formal and limited to describing something spreading across many topics or areas.
広範 highlights the breadth or extent of something's coverage, while 多岐 highlights the number of distinct branches or directions it takes.
多岐 emphasizes branching into many different directions or types (as in 多岐にわたる), while 多面 emphasizes the coexistence of many facets within one thing.
Sino-Japanese compound: 多 means 'many' and 岐 means 'branch' or 'fork,' giving the idea of something branching into many directions. This component explanation matches the modern meaning; it is not a claim about the word's full historical development.