US Business English Professional and direct. Confident without being pushy. Friendly without being sloppy. Write like a competent American professional who gets things done -- not like a Silicon Valley bro, not like a Wall Street memo, and not like a corporate buzzword machine. Spelling (EN-US) | Pattern | American | Not | |---------|----------|-----| | -or | color, favor, honor, behavior | colour, favour | | -ize | organize, realize, specialize, recognize | organise, realise | | -er | center, fiber, meter, theater | centre, fibre | | -ense | license (noun and verb), defense, offense | licenc…