subspace
sub·space/ˈsʌb.speɪs/noun
subspace is spelled S-U-B-S-P-A-C-E: 8 letters and 2 syllables (sub·space). It appears about once in every 1 million words in written English, the 33,236th most frequent word form (wordfreq, 2021 data). As a noun, subspace means “A subset of a space which is a space in its own right” (English Wiktionary, September 2026). The plural of subspace is subspaces.
How many letters and syllables are in subspace?
| Letters | 8: S-U-B-S-P-A-C-E |
|---|---|
| Syllables | 2: sub·space |
| In writing | about once in every 1 million words; the 33,236th most frequent word form |
| Wrong spellings searched | none measured in search |
Sources: letters and syllables from the English Wiktionary's hyphenation or pronunciation; written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).
How common is subspace?
Subspace appears about once in every 1 million words in written English, the 33,236th most frequent word form in the list.
Source: written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).
How do you pronounce subspace?
- /ˈsʌb.speɪs/
Subspace has 2 syllables, split sub·space in writing.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract). Recordings: LL-Q1860_(eng)-Flame,_not_lame-subspace.wav, Wikimedia Commons (author and licence on each file's page).
Forms of subspace
- subspaces plural
- sub space
- sub-space
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
What does subspace mean?
The meanings the English Wiktionary records, quoted as written there (source below).
noun
- 1
A subset of a space which is a space in its own right.
- 2
Any (often unspecified) method of communicating or travelling faster than light speed.
- 3
An alternative dimension or universe, access to or use of which permits faster-than-light travel or communications; hyperspace.
- 4
The psychological state of the submissive or bottom during sadomasochistic activity.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
Subspace in Spanish, French, German and Portuguese
| Language | Words |
|---|---|
| French | sous-espace |
| German | Unterraum, Teilraum |
| Portuguese | subespaço , subspace |
| Spanish | subespacio |
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract). Translations are Wiktionary's, by sense; a linked word has its own PlainSpell page.
Where does subspace come from?
From sub- + space.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).