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Updated on 2023-09-19
Typographic and editorial rules

Spelling

Estimated reading: 1 minute

English UK

Examples1

colour, centre, programme [not color, center, program]

Use “z” instead of “s” in words ending in ize, ization

Examples1

organization, organize, standardization, standardize, optimization, optimize, harmonization, harmonize, emphasize, recognize, urbanizego.iec.ch/iecsgfont

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