Tool (Advanced) to search and find dictionary words matching regular expressions. Simplify your searches for words with complex criteria thanks to the search by Regex (Regexp).
Regex Word Search - dCode
Tag(s) : Word Search
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Regex Word Search
Search Word with Regular Expression
Answers to Questions (FAQ)
What is a word search with a regular expression? (Definition)
A regular expression (or regex) is a formula describing a text pattern to search for.
Searching for words using a regular expression involves searching through a dictionary and selecting all words that match this pattern.
A regex can define specific criteria such as word length, the presence or position of certain letters, or even repetitions.
Knowledge of the syntax specific to regular expressions is essential to using them effectively.
How to find a word with a regular expression?
To search for a word using a regular expression, start by entering a pattern describing the word's characteristics.
dCode allows you to search the exhaustive list of words matching the regular expression in a given dictionary.
Example: ^([TR])..\1$ selects four-letter words beginning with T or R and ending with the same initial letter.
Example: [AEIOUY]{4} searches for words containing four consecutive vowels.
How to write a regular expression?
A regular expression is written using a combination of ordinary characters (letters, numbers, etc.) and special characters that have special meanings. Here are the main symbols to know:
.: Matches any letter
*: Matches zero or more repetitions of the previous letter
+: Matches one or more repetitions of the previous letter
?: Matches zero or one occurrence of the previous letter
[ABC]: Matches a single letter from A, B, or C
[^ABC]: Matches a single letter other than A, B, or C
^ABC: Indicates that the word must begin with the pattern ABC
ABC$: Indicates that the word must end with the pattern ABC. dCode uses the PCRE (Perl Compatible Regular Expressions) engine and follows its rules described at here
See Wikipedia for more details at here
dCode is case-insensitive, ignores diacritics, and modifiers.
Source code
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