Editing Vietnamese language (section)

===Vocabulary===
{| class="wikitable" style="text-align: center;"
|+ {{Anchor|Examples of regional variation in grammatical words}}Regional variation in vocabulary<ref>Table data from {{harvtxt|Hoàng|1989}}.</ref>
! Northern !! Central !! Southern !! English gloss
|-
| ''vâng'' || ''dạ'' || ''dạ'' || "yes"
|-
| ''này'' || ''ni'', ''nì'' || ''nè'' || "this"
|-
| ''thế này'', ''như này'' || ''như ri'', ''a ri'' || ''như vầy'' || "thus, this way"
|-
| ''đấy'' || ''nớ'', ''tê'' || ''đó'' || "that"
|-
| ''thế'', ''thế ấy'', ''thế đấy'' || ''rứa'', ''rứa tê'' || ''vậy'', ''vậy đó'' || "thus, so, that way"
|-
| ''kia'', ''kìa'' || ''tê'', ''tề'' || ''đó'' || "that yonder"
|-
| ''đâu'' || ''mô'' || ''đâu'' || "where"
|-
| ''nào'' || ''mồ'' || ''nào'' || "which"
|-
| ''tại sao'' || ''răng'' || ''tại sao'' || "why"
|-
| ''thế nào'', ''như nào'' || ''răng'', ''mần răng'' || ''làm sao'' || "how" 
|-
| ''tôi, tui'' || ''tui'' || ''tui'' || "I, me (polite)"
|-
| ''tao'' || ''tau'' || ''tao'' || "I, me (informal, familiar)"
|-
| ''chúng tao'', ''bọn tao'', ''chúng tôi'', ''bọn tôi'' || ''choa'', ''bọn choa'' || ''tụi tao'', ''tụi tui'', ''bọn tui'' || "we, us (but not you, colloquial, familiar)"
|-
| ''mày'' || ''mi'' || ''mày'' || "you (informal, familiar)"
|-
| ''chúng mày'', ''bọn mày'' || ''bây'', ''bọn bây'' || ''tụi mầy'', ''tụi bây'', ''bọn mày'' || "you guys (informal, familiar)"
|-
|''nó''
|''hắn'', ''hấn''
|''nó''
|"he/she/it (informal, familiar)"
|-
| ''chúng nó'', ''bọn nó'' || ''bọn nớ'' || ''tụi nó'' || "they/them (informal, familiar)"
|-
| ''ông ấy'' || ''ông nớ'' || ''ổng'' || "he/him, that gentleman, sir"
|-
| ''bà ấy'' || ''bà nớ'' || ''bả''|| "she/her, that lady, madam"
|-
| ''anh ấy'' || ''anh nớ'' || ''ảnh'' || "he/him, that young man (of equal status)"
|-
| ''ruộng'' || ''nương'' || ''ruộng'', ''rẫy'' || "field"
|-
| ''bát'' || ''đọi'' || ''chén'', ''tô'' || "rice bowl" 
|-
| ''muôi'', ''môi'' || ''môi'' || ''vá'' || "ladle" 
|-
| ''đầu'' || ''trốc'' || ''đầu'' || "head" 
|-
| ''ô tô'' || ''ô tô'' || ''xe hơi'' ''(ô tô)'' || "car" 
|-
| ''thìa'' || ''thìa'' || ''muỗng'' || "spoon" 
|-
|''bố''
|''bọ''
|''ba''
|"father"
|}
Although regional variations developed over time, most of those words can be used interchangeably and be understood well, albeit with more or less frequency then others or with slightly different but often discernible word choices and pronunciations. Some accents may mix, with words such ''dạ vâng'' combining ''dạ'' and ''vâng,'' being created''.''