It took me awhile after college to start being comfortable with saying "AGD" in the context of my sorority. At my college campus, Alpha Xi Delta went by "AZD", so it was very confusing if anyone tried to call us "AGD."
We tried to gently steer people (members and non-members) to use the "Alpha Gam" name to minimize confusion - both for our benefit and AZD's. It became such a habit in college to only say "Alpha Gam" when abbreviating our name that it took me awhile to adapt to "AGD" as being an acceptable version too.