Have you tried the "symbol" characters found in the drop-down menu of the
"Insert menu" or maybe the Equation Editor in Word would work for you.

HTH

gap

"Christa Heyting" wrote:

In statistics, estimates of parameter values are indicated by a letter
representing the parameter, with a circumflex accent. However, I found that
Word does not place circumflex accents onto letters representing consonants.
Why is this, and how to circumvent this problem?