W-w or ww?
w-w is an adjective meaning “Abbreviation of weight for weight or weight by weight (“the proportion of a…”; ww is a noun meaning “Initialism of world war”. w-w is written with a hyphen and ww as one word; they are used differently.
What is the difference between w-w and ww?
| w-w | ww | |
|---|---|---|
| Part of speech | adjective | noun |
| Meaning | ||
| Example | Water Content: 10 g/kg max (1% w/w) | none recorded |
| Forms | none | WWs |
| Pronunciation | not recorded | not recorded |
| In writing | not counted (the list counts single words) | 2.1 times per million words |
Sources: w-w and ww 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 w-w and ww
w-w
- 1
Abbreviation of weight for weight or weight by weight (“the proportion of a particular substance within a mixture, as measured by weight or mass”)
Water Content: 10 g/kg max (1% w/w)
- 2
Abbreviation of wall-to-wall
w-w carpet
- 3
Abbreviation of wall-to-wall
w/w carpeting
ww
- 1
Initialism of world war
- 2
Initialism of wrong word
- 3
Initialism of worldwide
- 4
slangInitialism of wild woman, i.e. prostitute
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, w-w or ww?
w-w is a phrase, which the list of single words does not count; ww 2.1 times per million words.
Source: written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).