Tardis:Spelling cheat card

At this wiki, we've taken a community stand to use British English in our main article space, and we therefore have a strict policy to support that consensus. However, a lot of our editors are American, which means that they won't think they're making mistakes at all. The help file, Help:How can I get my computer to spell check in British English?, gives tips on how you can make it easier to spot the mistakes you probably don't even know you're making.

However, there are some words that are so commonly misspelt they deserve to be highlighted in the following spelling cheat card. These, then, are the words our spelling bot has actively found, time and time again.

Correct	Incorrect
materialise dematerialise, rematerialise, materialisation	materialize
realise realisation, realising, realised	realize
appaled appaling	appalled
colonise	colonized
ageing de-ageing	aging
synthesise synthesising	synthesize
centre centring, centred, self-centred	center
labelled labelling but the base label has only one l	labeled
randomise therefore, randomiser	randomize
criticise criticising, criticised	criticized
colonise colonised, colonising	colonize
humorous This one is "overcompensation" — humour, humoured, humouring are all correct, but the US and UK agree on how to spell humorous	humourous
organise organisation, organising, organised	organized
hypnotise hypnotised, hypnotising	hypnotized
cancelled cancelling, cancellation	canceled, canceling, cancelation (though, actually, cancellation is correct on both sides of the Atlantic)
chanelled chanelling	chaneled
instalment This is a tricky one. Intstalment derives from the UK-only way of spelling install, instal. The British tend to use install as the base for most other forms of the word, just like Americans do. So installing, installed etc. are seen as correct by at least some Britons. But instalment is, for whatever reasons, firmly seen as the absolutely correct British spelling.	installment