American- British

-color-colour
-center-centre
-cookies-biscuits
-elevator-lift
-rest room-toilets
-soccer-football
-subway-undergraund
-pants-trouser
-apartment-flat
-honor-honour
-fullfil-fulfil
-chek-cheque
-tyre-tire
-labor-labour
-favor-favour
-bill-bankake
-fall-autumn
-zero-nought
-underpants-pants
-pharmacisrt-chemist
-grain-corn
-defense-defence
-life-light