A car has tyres. Maybe you tire of doing homework. That's the spelling everywhere except in the US.
The noun "tire" already is American English; the British spelling is "tyre".
Tyre is the British spelling for 'tire"
The British spelling of skillful is skillful in a British accent
British: tyre, plough, traveller, and so on. American: tire, plow, traveler, and so on.
The word is spelt as you have in the question. As it happens, there is no difference between the American spelling and British spelling of the words.
American spelling is 'recognized'. British spelling is 'recognised'.
The British English spelling of marvelous (astonishing; wonderful) is marvellous.
The British spelling is "squash" and the American spelling is also "squash." Both countries use the same spelling for this word.
The correct spelling for the word modernise is modernize.
centimetre (British spelling), centimeter (U.S. spelling)
The spelling is usually one word, styled YouTube.
You can use a program like myWriterTools to automatically change British spelling and word usage to American spelling and usage, or vice-versa.