In computing, a spell checker (or spell check) is an application program that flags words in a document that may not be spelled correctly. Spell checkers may be stand-alone capable of operating on a block of text, or as part of a larger application, such as a word processor, email client, electronic dictionary, or search engine.

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.

A spell checker customarily consists of two parts:

The scanning routines sometimes include language-dependent algorithms for handling morphology. Even for a lightly inflected language like English, word extraction routines will need to handle such phenomena as contractions and possessives. It is unclear whether morphological analysis provides a significant benefit for English, though its benefits for highly synthetic languages such as German, Hungarian or Turkish are clear.

Marshawn Terrell Lynch (born April 22, 1986) is an American football running back for the Seattle Seahawks of the National Football League. He was drafted by the Buffalo Bills in the first round (12th overall) of the 2007 NFL Draft. In his rookie year, Lynch became the Bills' first 1,000-yard rookie rusher since Greg Bell in 1984. He finished the season with 1,115 total rushing yards and seven touchdowns. Lynch played college football at California, where he was the school's second all-time career rusher with 3,230 yards.

Lynch attended Oakland Technical High School. In his 2003 season, Lynch amassed 1,722 rushing yards and 23 touchdowns in only eight regular season games, and an additional 375 rushing yards and 10 touchdowns in two postseason games. He was voted a PrepStar and SuperPrep All-American and was also voted as the San Francisco East Bay Player of the Year.

Lynch experimented with other positions in high school. He played defensive back and accumulated 20 interceptions his senior year. His coaches put him at defensive end for one game, and he forced three fumbles. Lynch also played some quarterback and wide receiver in high school. Before high school, Lynch had originally played as an offensive guard.Rivals.com had him ranked #1 in the nation as a defensive back, but he decided to stick to his passion at running back. Lynch ended his high school career as the second-ranked running back in the nation in 2004 behind Adrian Peterson by Rivals.com.