When used as a noun, the plural form of open is opens, e.g.:
Tiger Woods has won 3 US Opens.
The plural of rust is rusts. As in "a nail left in the open rusts easily".
Singular ; crate Plural ; crates
The plural is fats.
Plural
The plural is toothpastes.
The plural of burst is bursts. As in "the door bursts open".
The plural of centre is centres. As in "the centres are open all wekend".
The plural of rust is rusts. As in "a nail left in the open rusts easily".
The noun 'opens' is the plural form of the singular noun 'open', a word for a contest or tournament that has no restrictions on who may compete.Note: The noun 'open' is an uncountable noun as a word for a wide or unobstructed space or expanse.The verb 'opens' is the third person, singular of the verb to open.
You (plural) open the door.
It means "open" (imperative, plural).
The verb "to open" in Spanish is "abrir." Therefore: I open - abro you open - abres he/she/it opens - abre we open - abremos you (plural) open - abrís they open - abren
You shouldn't need more than one, since a passkey is supposed to open all the doors, but the plural is passkeys.
The plural form for the noun ball is balls. The plural possessive form is balls'.Example: The balls' container broke open and all of the balls bounced down the stairs.
Open-air markets are know as Suq (plural is Aswaq) (سوق)
The word twin is not necessarily plural, for example, I have a twin bed. I have a twin brother. Singular in both cases.
The plural is underwater roller coasters. The word underwater is an adjective describing roller coaster, adjectives don't take plural forms. Roller coaster is an open compound noun, the plural 's' goes on the end of the noun.