Britishand American spelling

1. ogue/og
BrE: analogue, catalogue, dialogue
AmE: analog, catalog, dialog

  1. our/or
    BrE: colour, favourite, honour
    AmE: color, favorite, honor

  2. ence/ense
    Bre: defence, licence
    AmE: defense, license

  3. s/z
    BrE: analyse, criticise, organisation (but z is also used)
    AmE: analyze, criticize, organization

  4. l/ll
    BrE: enrolment, fulfil, skilful
    AmE: enrollment, fulfill, skillful

  5. re/er
    BrE: centre, theatre, metre
    AmE: center, theater, meter

  6. miscellaneous
    BrE: jewellery, programme, practise, pyjamas
    AmE: jewelry, program, practice, pajamas

NB1: in BrE program is used when talking about computers
NB2: in BrE practise is a verb and practice is a noun