Editing Spell checker (section)

{{Short description|Software to help correct spelling errors}}
In [[software]], a '''spell checker''' (or '''spelling checker''' or '''spell check''') is a [[software feature]] that checks for misspellings in a [[text file|text]]. Spell-checking features are often embedded in [[software]] or services, such as a [[word processor]], [[email client]], electronic [[dictionary]], or [[search engine]].

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<poem style="width:240px;" style="font-family: arial; font-size: 12px; font-weight: bold; background-color: #ffffff">
Eye have a spelling chequer,
It came with my Pea Sea.
It plane lee marks four my revue
Miss Steaks I can knot sea.

Eye strike the quays and type a whirred 
And weight four it two say 
Weather eye am write oar wrong 
It tells me straight a weigh.

Eye ran this poem threw it,
Your shore real glad two no.
Its vary polished in its weigh.
My chequer tolled me sew.

A chequer is a bless thing,
It freeze yew lodes of thyme.
It helps me right all stiles of righting,
And aides me when eye rime.

Each frays come posed up on my screen
Eye trussed too bee a joule.
The chequer pours o'er every word
Two cheque sum spelling rule.
</poem>
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The original version of this poem was written by Jerrold H. Zar in 1992.  An unsophisticated spell checker will find little or no fault with this poem because it checks words in isolation.  A more sophisticated spell checker will make use of a [[language model]] to consider the context in which a word occurs.
}}
[[File:Spell checker.jpg|thumb|[[Google Chrome]] spell checker in action for the above poem, the word "chequer" marked as unrecognized word]]