regex - How to find words containing a certain letter with Regular Expressions?

Question

I need a regular expression to find any words containing the letter "y".

This was my idea:

/w*[y]w*/

a word boundary, something or nothing, y, something or nothing, word boundary.
It works for the first word, but not for the next one.

How do I get all the words containing a y within a string?

Answer 1

Not knowing what language you're using and guessing based on the syntax of your attempt, this should work:

/w*[Yy]w*/g

Without the "g" (for "global") option you'll only get the first match. Note also this matches on "y" in both upper and lower case.