In the address section of the application form you provide the addresses you actually LIVED at. If, say you lived at 1600 Pennsylvania Avenue, Washington, DC, but went on a short trip to Russia to meet friends, you only have to declare the Washington address.
Note that this only applies to the "Addresses in the past years" section of the form. For the physical presence calculation you must include every absence but that one doesn't ask for the address, just for the countries you've been to and the reason.