Use this page to practice a regex on a large word list. See wiki: Regular_expression for more information on how this works

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Some Examples

^ tr [a-e] [^e] $
Must start with 'tr' Start of word is 'tr' 3rd letter is a,b,c,d,e 4th letter is not e Nothing trailing after previous
^ . e t .*
Nothing before the start Any letter 2nd letter = e 3rd letter = t Any number of letters