Regularization is predominantly used in American (US) English (en-US)
while regularisation is predominantly used in British English (used in UK/AU/NZ) (en-GB).
Of the 12 countries below, 4 prefer “regularization” and 3 prefer “regularisation”. Usage levels are out of 100; the more common spelling in each country is in bold.
| Country | regularization | regularisation | Preference |
|---|---|---|---|
| United States | 97 | 3 | “regularization” |
| United Kingdom | 43 | 57 | “regularisation” |
| India | 49 | 51 | “regularisation” |
| Philippines | 96 | 4 | “regularization” |
| Canada | 79 | 21 | “regularization” |
| Australia | 68 | 32 | “regularization” |
| Liberia | 0 | 0 | Not enough data |
| Ireland | 46 | 54 | “regularisation” |
| New Zealand | 0 | 0 | Not enough data |
| Jamaica | 0 | 0 | Not enough data |
| Trinidad & Tobago | 0 | 0 | Not enough data |
| Guyana | 0 | 0 | Not enough data |
Real sentences for each spelling. Hover an example to copy it.
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