It is spelled mouths. Example: All the students' mouths dropped open when they heard school was canceled for 2 weeks.
The plural form for the noun mouth is mouths.
There is no plural form for the word, countries. This word itself is a plural.
The plural of diary is diaries.
The plural form of the word 'deed' is 'deeds'.
The plural form of the word gelato is gelati.
The plural form of the word neurosis is "neuroses".
The plural possessive form of "mouth" is "mouths'".
The plural form of mouth is mouths. The plural form of month is months. The Mounth is a range of hills in Scotland and does not have a plural form.
The noun dentistry is an uncountable noun, a word for the branch of medicine involving the mouth, teeth, and gums. The plural form is dentistry practices.
The plural form for the demonstrative pronoun this is these.
The plural form of the word "inferno" is "infernos."
The plural form of the word "ranch" is "ranches."
There is no plural form for the word, countries. This word itself is a plural.
There is no plural word for if.
The plural form is data.
The plural form for the word 'pioneer' is pioneers.
The plural form of the word "pharynx" is "pharynges."
The plural form of vow is vows.