Eighth floor vs They're on the eighth floor

When to use each in English, with meaning, register, and examples.

Eighth floor

Beyond 10,000 (less common)

They're on the eighth floor

Top 2,000 (common)
Most common: They're on the eighth floor
 Eighth floorThey're on the eighth floor
Pronunciation🇬🇧 //eɪθ flɔː//🇺🇸 //eɪθ flɔr//🇬🇧 //ðeə(r) ɒn ði eɪtθ flɔː//🇺🇸 //ðɛr ɑn ði eɪtθ flɔr//
MeaningThe level that is eight stories above the ground.A part of a building that is the eighth level above the ground.
ExampleI live on the eighth floor of the apartment complex.The conference is being held on the eighth floor of the hotel.
RegisterNeutralNeutral
How commonBeyond 10,000 (less common)Top 2,000 (common)
Collocationseighth floor apartment, eighth floor office, eighth floor accesslive on the eighth floor, office on the eighth floor, elevator to the eighth floor
Common mistakesConfused with 'eight floor' - remember to use 'eighth'., Omitting the word 'floor' - it's important to specify., Incorrect order, saying 'floor eighth'.Using 'eighteeth' instead of 'eighth'., Saying 'on the eight floor' instead of 'eighth floor'.
Usage notesOften used in buildings with multiple floors; suitable for both casual and formal speech.Use this phrase to indicate a specific location in a multi-story building. It's appropriate in everyday conversations and formal contexts.

See it in real clips

Eighth floor
They're on the eighth floor

Frequently asked questions: Eighth floor vs They're on the eighth floor

What's the difference between Eighth floor and They're on the eighth floor?

Eighth floor: The level that is eight stories above the ground. They're on the eighth floor: A part of a building that is the eighth level above the ground.

Which is more common: Eighth floor and They're on the eighth floor?

They're on the eighth floor is the most common in everyday English.

Can you show an example of each?

Eighth floor: I live on the eighth floor of the apartment complex. They're on the eighth floor: The conference is being held on the eighth floor of the hotel.

Can I use Eighth floor and They're on the eighth floor interchangeably?

Not always. Eighth floor and They're on the eighth floor are related and overlap in some contexts, but they differ in register, how common they are, and usage, so swapping one for another can change the meaning or tone. Check the differences above before substituting.