upstairs
//ˌʌpˈstɛrz//
Adverb
1
On or to an upper floor of a building.
She went upstairs to her bedroom.
2
To or at a higher level or position.
She was promoted upstairs to the executive team.
Antonym
Adjective
1
Situated on an upper floor.
The upstairs bedroom is very quiet.
Antonym
Noun
1
The upper floor or floors of a building.
The bedrooms are on the upstairs.