A word boundary

\b

Matches, without consuming any characters, immediately between a character matched by \w and a character not matched by \w (in either order).

Examples

Match Sample:

word boundaries are odd

Regex Example:

d\b

JAVASCRIPT PYTHON PCRE

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<!-- Embed Regex Token: \b -->
<code class="regex-token">\b</code> - A word boundary
<small><a href="https://testregex.com/cheatsheet/a-word-boundary">See details</a></small>