Under water or underwater?
under water is the uncommon form of underwater. under water is written as two words and underwater as one word; they are used differently.
What is the difference between under water and underwater?
| under water | underwater | |
|---|---|---|
| Part of speech | prepositional phrase, adjective, verb | adjective, adverb, noun, verb |
| Meaning | Uncommon form of underwater Alternative form of underwater | Beneath the surface of the water; of or pertaining to the region beneath the water surface Beneath the water line of a vessel So as to go beneath the surface of the water Underlying water or body of water, for example in an aquifer or the deep ocean |
| Example | none recorded | Watch out for underwater obstacles |
| Pronunciation | not recorded | /ʌndə(ɹ)ˈwɔːtə/ /ʌndɚˈwɔtəɹ/ |
| In writing | not counted (the list counts single words) | 8.3 times per million words |
Sources: under water and underwater in the English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0); written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).
Every current meaning of under water and underwater
under water
- 1
Alternative form of underwater
underwater
- 1
Beneath the surface of the water; of or pertaining to the region beneath the water surface
Watch out for underwater obstacles
- 2
So as to go beneath the surface of the water
Can you swim underwater?
- 3
Underlying water or body of water, for example in an aquifer or the deep ocean
- 4
To water or irrigate insufficiently
Care must be taken not to underwater houseplants in the summer
- 5
Beneath the water line of a vessel
When the ship was brought into dry dock, it was found that she had underwater damage
- 6
A type of lure which lies beneath the water surface
- 7
In difficulty, especially financially
- 8
Having negative equity; owing more on an asset than its market value
We've been underwater on our mortgage ever since the housing crash
Source: the English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0); obsolete, archaic, dialect and rare senses left out.
Which is more common, under water or underwater?
under water is a phrase, which the list of single words does not count; underwater 8.3 times per million words.
Source: written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).
How many people search under water vs underwater?
“under water vs underwater” is searched about 40 times a month on Google and 10 on Bing in the United States. Google counts close variants of a query together (“underwater vs under water”, “under water or underwater”).
Sources: Google Ads keyword data through DataForSEO and Microsoft Advertising keyword data through DataForSEO, the average month from September 2025 to August 2026.