Are you concerned that a hiring manager may notice the gap in your resume? Maybe you worked steadily from 1993-2001 and then you were unemployed from 2001-2002.
Should you ignore it, explain it, or make up something?
None of the above. Tell the truth and let it work in your favor. Here's how:
Suppose you took care of a sick relative, spent a year getting your master's degree or further training in your area of expertise, did extended volunteer work in your community, or took a year off to see the world?
List whatever it is on your resume. By bridging the work-gap you are showing another side of yourself