Spell checking points out which words are spelt incorrectly after you have finished typing. (You then have to correct the mistakes).
Auto correct changes the spelling of words that are incorrect as you are typing them.
one is irish
spell check depends on dictionary but auto correct depend on entries which are pre entered
That is the correct spelling for "different".
The correct spelling of the word is "difference" (distinction).
The correct spelling is "between."
The correct spelling is difference (a distinction, or something changed).
Carnauba wax is the correct spelling, but some spell it, "Carnuba" because it is a little simpler. They are the same substance.
While spell checking my answer, try spell checking the question.
The correct grammar/spelling is in between.
Just the spelling - the "ph" is the older way, which the British used as it was the correct way to spell it, now everyone has it spell it with an "f". It's the same element either way.
Spell check checks and reports misspellings. A Thesaursus gives alternate words with similar meanings. For example: irritated - angry, mad
That is the correct spelling of "differences" (variations, changes).