Question 1

What is a regex dictionary?

Accepted Answer

A regex dictionary lets you search a word list using regular expressions (regex) — patterns that describe the shape of words rather than exact matches. For example, you can find all five-letter words ending in 'tion' or words with three consecutive vowels.

Question 2

What is a regular expression (regex)?

Accepted Answer

A regular expression is a pattern used to match text. Instead of searching for a fixed word, you describe the shape of what you're looking for — for example, .{5} matches any five-letter word, and [aeiou]{3} matches any three consecutive vowels.

Question 3

How does the regex dictionary search work?

Accepted Answer

After the word list loads, all matching happens in your browser — nothing is sent to a server. Matching runs in a background thread so the page stays responsive even against a list of 275,000+ words.

Question 4

Does this regex dictionary work offline?

Accepted Answer

Once the page and word list have loaded, the search works entirely offline. There is no server communication during use.