Britânico - Americano
colour - color
favourite - favorite
honour - honor
analyse - analyze
criticise - criticize
memorise - memorize
enrolment - enrollment
fulfil - fulfill
skilful - skillful
centre - center
metre - meter
theatre - theater
analogue - analog
catalogue - catalog
dialogue - dialog
jewellery - jewelry
draught - draft
pyjamas - pajamas
plough - plow
programme - program
tyre - tire
cheque - check
mediaeval - medieval
defence - defense
licence - license