Waste water or wastewater?
waste water is a noun meaning “Alternative form of wastewater”; wastewater is a noun meaning “Any water that has been used in some human domestic or industrial activity and…”. waste water is written as two words and wastewater as one word; they are used differently.
What is the difference between waste water and wastewater?
| waste water | wastewater | |
|---|---|---|
| Part of speech | noun | noun |
| Meaning | Alternative form of wastewater | Any water that has been used in some human domestic or industrial activity and, as a result, now contains waste products |
| Example | none recorded | Near-synonyms: sewage, sullage, graywater, blackwater, washwater, poop water (informal) |
| Forms | none | wastewaters |
| Pronunciation | not recorded | not recorded |
| In writing | not counted (the list counts single words) | 2.3 times per million words |
Sources: waste water and wastewater 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 waste water and wastewater
waste water
- 1
Alternative form of wastewater
- 2
Alternative form of wastewater
wastewater
- 1
Any water that has been used in some human domestic or industrial activity and, as a result, now contains waste products
Near-synonyms: sewage, sullage, graywater, blackwater, washwater, poop water (informal)
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, waste water or wastewater?
waste water is a phrase, which the list of single words does not count; wastewater 2.3 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 waste water vs wastewater?
“waste water vs wastewater” is searched about 10 times a month on Google and 10 on Bing in the United States. Google counts close variants of a query together (“wastewater vs waste water”, “waste water or wastewater”).
Sources: Google Ads keyword data through DataForSEO and Microsoft Advertising keyword data through DataForSEO, the average month from September 2025 to August 2026.