Most of the time Spell check can't give the right suggestion if more than one character is wrong, missing or to many. I find that spell check can see it might be a wrongly spelled word though. If it can't see it a a wrongly spelled word it is a problem. Better tell apple when you find word like that but make sure you tell them which language you find the problem in. There are several versions of english you know. I wold use this page http://www.apple.com/feedback/macosx.html as Spell checking is a system feature and not a specific Pages or Safari feature.
Feb 20, 2012 10:46 AM
You can check spelling, or both spelling and grammar, in documents such as TextEdit files or email messages in many of Mac® OS X apps. Want to check spelling.
Mac Os X Pages Spell Checkers
Mac Spell Check Command
Check what language macOS thinks it should be checking your spelling in. You should look in two places to see if macOS preferences changed: In Safari or any app that lets you type, click in a field. There are several solutions for spell-checking on Mac OS X. As of LyX 2.0, the built-in OS X spell-checker is supported, built on the open source Hunspell. Both spell-checking and thesaurus should work as-is if LyX is configured by the standard installer. One may alternatively perform a separate install of Hunspell or Aspell. (Hunspell is also.