Editing Vocative case (section)

====West Iberian languages====
[[Portuguese language|Portuguese]] drops the article to form the vocative. The vocative is always between commas and, like in many other languages, a particle ''Ó'' is commonly used:
{| class="wikitable"
|''{{lang|pt|Ó Jesus, ajude-nos!}}''
|O Jesus, help us!
|-
|''{{lang|pt|Menino, vem cá!}}''
|Boy, come here!
|-
|''{{lang|pt|Não faças isso, amigo.}}''
|Don't do that, [my] friend.
|}
In [[Extremaduran language|Extremaduran]] and [[Fala language|Fala]], some post-tonical vowels open in vocative forms of nouns, a new development that is unrelated to the Latin vocative case.