Realisation or realization?
realisation is a noun meaning “Alternative spelling of realization”; realization is a noun meaning “An act of figuring out or becoming aware”. Wiktionary gives them as spellings of the same word. In written English (wordfreq, 2021 data) realization is about 3.3 times as common as realisation.
What is the difference between realisation and realization?
| realisation | realization | |
|---|---|---|
| Part of speech | noun | noun |
| Meaning | UKAlternative spelling of realization | BritishUSAn act of figuring out or becoming aware BritishUSThe act of making real |
| Example | none recorded | He came to the startling realization that he had never really known the truth |
| Forms | realisations | realizations |
| Pronunciation | not recorded | /ˌɹɪə.laɪˈzeɪ.ʃən/ /ˌɹiə-/ /ˌɹiə.lɪˈzeɪ.ʃən/ |
| In writing | 1.6 times per million words | 5.2 times per million words |
Sources: realisation and realization 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 realisation and realization
realisation
- 1
UKAlternative spelling of realization
realization
- 1
BritishUSAn act of figuring out or becoming aware
He came to the startling realization that he had never really known the truth
- 2
BritishUSThe act of making real
He did not stay around long enough to see the realization of the idea
- 3
BritishUSThe result of an artistic effort
The painter's realization of her concept was breathtaking
- 4
BritishUSThe manner in which a phoneme is pronounced
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, realisation or realization?
realisation appears 1.6 times per million words; realization 5.2 times per million words.
realisation 1.6 times per million wordsrealization 5.2 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 realisation vs realization?
“realisation vs realization” is searched about 10 times a month on Bing (Google reports it together with close variants, so it has no figure of its own) in the United States.
Sources: Google Ads keyword data through DataForSEO and Microsoft Advertising keyword data through DataForSEO, the average month from September 2025 to August 2026.