What is the plural of restroom?

The plural of restroom is restrooms.

restroom

Common synonyms for restroom include public toilet, comfort station, public convenience, convenience, public lavatory, toilet facility, wash room.

/ˈɹɛstˌɹum/noun2 syllables

Restroom means: a toilet that is available to the public.

noun, as in a toilet that is available to the public

public toilet, comfort station, public convenience, convenience, public lavatory, toilet facility, wash room

also used for restroom

Includes material from Wiktionary, CC BY-SA 4.0.

noun

a toilet that is available to the public

Definitions from the Open English WordNet, CC BY 4.0.

If you go to the restroom, you'll lose your place in line.CK
He couldn't find the restroom, so he had to ask the shopkeeper for directions.frpzzd
Excuse me, could you please tell me where the restroom is?carlosalberto
I refuse to use public restrooms, as they are very unhygienic.mailohilohi
Leaving the restroom we must wash our hands!saasmath
Yanni excused himself to the restroom to do his business.Amastan
The flimsy stalls in this restroom offer very little privacy.kebukebu
I went to the restroom during the intermission.CK

Sentences from Tatoeba, CC BY 2.0 FR, credited to their authors.

as a noun