observable
/əbˈzɝ.və.bəl/adjective, noun
observable is spelled O-B-S-E-R-V-A-B-L-E: 10 letters and 4 syllables. It appears 1.3 times per million words in written English, the 25,070th most frequent word form (wordfreq, 2021 data). As an adjective, observable means “Able to be observed” (English Wiktionary, September 2026).
How many letters and syllables are in observable?
| Letters | 10: O-B-S-E-R-V-A-B-L-E |
|---|---|
| Syllables | 4 (from its American pronunciation) |
| In writing | 1.3 times per million words; the 25,070th most frequent word form |
| Wrong spellings searched | none measured in search |
Sources: letters and syllables from the English Wiktionary's hyphenation or pronunciation and the CMU Pronouncing Dictionary; written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).
How common is observable?
Observable appears 1.3 times per million words in written English, the 25,070th 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 observable?
- UK /əbˈzɜː.və.bəl/
- UK [əbˈzɜː.və.bɫ̩]
- US /əbˈzɝ.və.bəl/
Observable has 4 syllables (counted from its American pronunciation in the CMU Pronouncing Dictionary).
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract). Recordings: LL-Q1860_(eng)-Vealhurl-observable.wav, Wikimedia Commons (author and licence on each file's page).
Forms of observable
- more observable comparative
- most observable superlative
- observables plural
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
What does observable mean?
The meanings the English Wiktionary records, quoted as written there (source below).
adjective
- 1
Able to be observed.
The strange new star was at the edge of the observable universe.
- 2
Deserving to be observed; worth regarding; remarkable.
noun
- 1
Any physical property that can be observed and measured directly and not derived from other properties.
Temperature is an observable but entropy is derived.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
Observable in Spanish, French, German and Portuguese
| Language | Words |
|---|---|
| French | observable |
| German | beobachtbar , Observable |
| Portuguese | observável |
| Spanish | observable |
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 observable come from?
From observe + -able.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).