Suffixes in Verbs : -ise or -ize

Prefixes and Suffixes Index

Suffixes in Verbs : -ise or -ize

-ise or -ize in British English & American English?

It is generally true that the American preference for -ize is mirrored in British English by a general preference for -ise, so it is perhaps useful to standardise on one of these two patterns as far as possible. In a standard British dictionary - e.g. the Concise Oxford - you will often find that both options are possible in British English.

  • realise or realize

  • organsise or organize

  • Whilst for other entries -ize is listed as unmistakably American.

  • analyse = British English

  • analyze = American English

  • Those who have a preference for British English in this respect, for the sake of consistency can retain this preference for other spelling options, e.g.

  • programme, not program

  • colour, not color

  • metre, not meter

  • catalogue, not catalog

  • traveller, not traveler

  • When you are reading American English, it can be fun to spot the differences.

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