“Ionization” or “Ionisation”

Language

Ionization and ionisation are both English terms.

Usage

Ionization is predominantly used in 🇺🇸 American (US) English (en-US) while ionisation is predominantly used in 🇬🇧 British English (used in UK/AU/NZ) (en-GB).

In terms of actual appearance and usage, here's a breakdown by country, with usage level out of 100 (if available) 👇:

Term	US	UK	India	Philippines	Canada	Australia	Liberia	Ireland	New Zealand	Jamaica	Trinidad & Tobago	Guyana
ionization	99	21	61	98	94	34	100	37	33	88	77	79
ionisation	1	79	39	2	6	66	0	63	67	12	23	21

• In the United States, there is a preference for "ionization" over "ionisation" (99 to 1).
• In the United Kingdom, there is a 79 to 21 preference for "ionisation" over "ionization".
• In India, there is a preference for "ionization" over "ionisation" (61 to 39).
• In the Philippines, there is a preference for "ionization" over "ionisation" (98 to 2).
• In Canada, there is a preference for "ionization" over "ionisation" (94 to 6).
• In Australia, there is a 66 to 34 preference for "ionisation" over "ionization".
• In Liberia, there is a preference for "ionization" over "ionisation" (100 to 0).
• In Ireland, there is a 63 to 37 preference for "ionisation" over "ionization".
• In New Zealand, there is a 67 to 33 preference for "ionisation" over "ionization".
• In Jamaica, there is a preference for "ionization" over "ionisation" (88 to 12).
• In Trinidad & Tobago, there is a preference for "ionization" over "ionisation" (77 to 23).
• In Guyana, there is a preference for "ionization" over "ionisation" (79 to 21).

Examples

Below, we provide some examples of when to use ionization or ionisation with sample sentences.

Trends

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