Air flow or airflow?
air flow is a noun meaning “Alternative form of airflow”; airflow is a noun meaning “Any flow of air, especially the motion of air around a moving aircraft or…”. air flow is written as two words and airflow as one word; they are used differently.
What is the difference between air flow and airflow?
| air flow | airflow | |
|---|---|---|
| Part of speech | noun | noun |
| Meaning | Alternative form of airflow | Any flow of air, especially the motion of air around a moving aircraft or aerofoil |
| Example | none recorded | none recorded |
| Forms | none | airflows |
| Pronunciation | not recorded | not recorded |
| In writing | not counted (the list counts single words) | 1.2 times per million words |
Sources: air flow and airflow 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 air flow and airflow
air flow
- 1
Alternative form of airflow
airflow
- 1
Any flow of air, especially the motion of air around a moving aircraft or aerofoil
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, air flow or airflow?
air flow is a phrase, which the list of single words does not count; airflow 1.2 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 air flow vs airflow?
“air flow vs airflow” 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 (“airflow vs air flow”, “air flow or airflow”).
Sources: Google Ads keyword data through DataForSEO and Microsoft Advertising keyword data through DataForSEO, the average month from September 2025 to August 2026.