Sorry, I presumed you have the full suite. Another 'dragon error. Grrrrr.
Re the Uninstall capability, there is such a critter (in the suite version anyway) located in Applications/Microsoft Office/Additional Tools.
You might check to see if you too have such a beast (in a similar location). Perhaps even do a search on "remove".
But even if you have it, most have found that it does not do a 100% job of uninstalling. You should also/then do a search on Microsoft, Word, etc. and manually remove any found detritus.
Notes:
1. If you have the Remove tool, be sure you are not connected to a local network when using it. Otherwise it will seek out and remove those versions, or parts thereof, as well.
2. If you have the Remove tool, it should have an accompanying Read Me. Read it.
If all this fails, there are (at least) two sites that have forums just for Office/Word. A post there may pay handsome dividends:
1.
MacFixIt/Office2.
GoogleGroups/WordThe Google site is staffed by MVPs (Microsoft Valuable Professionals) and most always brings success.