For a spelling checker algorithm to work, there has to be a list of words or a dictionary with correct words. The algorithm has to take each word and see if exists in the dictionary. If a word does not exist in the dictionary, it gets highlighted as a misspelling. To speed up searching a word in a dictionary, a computer program may use indexing and binary search etc..
Then the next step is to suggest correct spelling. For this, the spell checker uses pattern matching. A good Spelling suggestion algorithm may split a given misspelled word in to syllables and look for words that has as many syllables of the misspelled word in that order to list spelling suggestions. Most of the time, misspellings goes in vowels.
spell check your question
Spell check can tell if a word is misspelled, but it cannot tell if a word is misused.
Your original question starts "Why cat writers only use spell check" instead of "why can't". Since "cat" is a correct spelling, spell check sees nothing wrong with it.
The answer is the spell check doesn't work on my laptop?
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Yes Wiki Answers has spell check option !
Spell Check corrects your words or finds the words you misspelled.
its something about spell
Spell check
Spell-check! I will assume you mean *fired*. And the answer is no.
Use http://allankirsch.tech.officelive to spell check http://Bellsouth.net.
spell checker