Dialects are linguistic varieties that may differ in pronunciation, vocabulary, spelling, and other aspects of grammar.
Dialects can be defined as "sub-forms of languages which are, in general, mutually comprehensible.
The combination of differences in pronunciation and use of local words may make some English dialects almost unintelligible to speakers from other regions without any prior exposure.
Standard English is often associated with the more educated layers of society as well as more formal registers.
[3] Conversely, a number of countries with historical ties to the United States tend to follow American English conventions.