My friend Cara posted this on Facebook, which I’ve cross posted here with her permission:
In case you were confused, your adult female colleagues are women, not girls. This is true whether she’s using a software license you want to be using (as in “some new girl in another office is using the license”) or if you primarily interact with her because she answers the phone (as in “you can call this number and tell the girl who answers that you want to talk to me”). The only time you are likely to interact with a “girl” in your office is when your boss brings in his dog.
Or her daughter for Take Your Daughter to Work Day.