Yes. "Continuum" is another common one, and there are others. See this question answered by the OED staff:
http://www.askoxford.com/asktheexperts/faq/aboutwords/vacuum?view=uk
The slang term "vac" normally means "vacuum" as in vacuum cleaner.The acronym VAC may mean "volts AC."In literary use, VAC means single vowel and consonant in an accented ending syllable.The abbreviation vac. may mean "vacant."The text-speak VAC stands for "vultures are circling."
It's spelled Vacuum. This is the American spelling like "color" instead of the British "Colour". Another spelling is Vacume (Canadian) There is not always one way to spell words as many have been co-opted by cultures like American. As we speak English I would go with the British spelling. Vacuum.
diffent
spelling city is a really good place to learn English words
Like many other non-English words, Shidach can be spelled just like that. The importance is in the pronunciation, thus this spelling does the trick.
Favorite is the correct spelling in American English, while in the United Kingdom it would be spelled favourite. This is similar to other words that are spelled differently in America and the United Kingdom, like honor/honour and recognize/recognise.Favourite is the correct British English spelling.The US English spelling is favorite.
That is the correct spelling of the word "jewelry" (uncapitalized).
Inverted words: Interrogative sentences. Unclear pronouns: Indefinite pronouns Variable spelling: some nouns have alternate spelling
Math is the correct spelling for this sentence. Maths can be the correct spelling for this sentence. In other words it depends on how you put it in a sentence. * * * * * English : Maths US : Math
Just about every English-speaking country, besides the USA, spells colour with a -our ending. The same goes with other words like "favo[u]rite", "neighbo[u]r", humo[u]r", etc. So yes, the Irish spelling is "colour."
The word didn't is an abbreviation of the words did not so unless you write the full words there is no other way of spelling didn't.
All the given words are the correct spelling in both British English and American English.