A or An
"upstairs" is a plural word.
How to pronounce upstairs: How to pronounce upstairs
Cite This Source
Not sure why "upstairs" is plural? Contact Us! We'll explain.
1. When to use A vs. An2. What is a vowel?3. What is a consonant?4. What is a plural word?5. What is a singular word?
iglooeraseryellowhamburgerhamster
artistheavyyachtegghippo
Grammar Quiz
Is it then or than?
Take the Grammar Quiz
A or An, A vs An, A or An Dictionary, and A-or-An are all trademarks of A or An.
About Us | Terms | Privacy | Contact
© 2025 A or An. All rights reserved.
Terms | Privacy | Contact