There are three principal subgroups of Guaraní in Bolivia, marked by dialectical and historical differences:

There is some dialectical difference here as well, with iku as more standard, but yuku common in Western Japan.

There are many areas in Ibibio land that have their dialectical differences.

Some of these dialectical differences are still found today.

She made the statement in Universal with an upper-class Alliance accent, obvious to anybody who noticed dialectical differences.

However, the Kwak'wala spoken by each tribe exhibits dialectical differences which may be quite significant in some cases.

But those were rooted in regional or dialectical differences, not deliberate attempts to impose linguistic change.

There appear to have been dialectical differences between the major Caxcan valleys, and it is likely that several other languages were spoken in Caxcan territory.

Each village has unique dialectical differences, idioms, and expressions that are favored as well.

Starting with the migration into Eastern Europe some dialectical differences began to develop among the various tribes.