Search text for substring as a whole word

Hi everyone,

I'd like to create a new column with values "true" or "false" based on whether or not another column contains a keyword I am searching for. But I'd like "true" to be the case only when the keyword appears as a full word and not when it is only part of a word.

For example, if the keyword to search for is "IT":

"HEAD OF IT" and "IT WORKER" should both be "true", but "CITY WORKER" should be "false".

Can this be done using either Power Query or DAX?