how do I show multiple columns in a drop down box

I have a drop down list box that I would like to show two columns, is this possible? Or can it be done with a list box?
The query correctly retrieves all of the table data to be displayed, one colum is an abbreviation, the other a bit longer description.
 
BLDGRNDS   |  Building and Grounds
MAINT          | Facility Maintenance
etc.
 
I also need to acquire the results of the first column when a row is selected for updating the database. 
Can someone help me figure this one out?
 
Thanks,
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