Only your employer can tell you what the entry in the description field refers to. Reach out to them and ask them what the description means. And then if none of the categories listed match, choose the OTHER category. It will say ''unclassified'' or ''not on list'' depending on which version of TurboTax you are using to complete your tax return.
Employers can put just about anything in box 14; it's a catch-all for items that don't have their own dedicated box on the W-2. In TurboTax, enter the description from your W-2's box 14 on the first field in the row. Enter the dollar amount and select the correct tax category that goes with that description.
Contributions to what? If you're talking about contributions to charity that you made through payroll, you enter it in TurboTax as a charitable contribution, the same as if you had written a check to the charity. The information about the charitable contribution in box 14 of your W-2 is just for your information. For the category in box 14 when you enter your W-2, select "Other - not on above list."