To remove the hole and fill in a polygon, use the following steps:
- Click the Edit tool
on the Editor toolbar and double-click the feature you want to edit. - Right-click the part you want to delete, point to Part, then click Delete.
- Right-click anywhere on the map and click Finish Sketch
.
To replace the hole with a new polygon, use one of the following methods:
- Trace a new feature (see the task below).
- Turn on edge and vertex snapping for the polygon layer containing the void and use the Polygon tool to digitize a new feature inside the void.
- Use the Auto-Complete Polygon tool
and draw a sketch across the void. This will create two new features in the void, which you could then merge. - Copy and paste the feature, then delete the outer part of the new feature, leaving only the interior. This method works if the void is entirely contained within one polygon rather than at the border of two adjacent polygons.
- If you have many voids to fill in with new features and want to do them all at once, you can set up a geodatabase topology with a Must Not Have Gaps rule. Using the Error Inspector
or the Fix Topology Error tool 
, select all the errors caused by voids in the polygons, right-click, then click Create Feature.
- In the Create Features window, click a polygon feature template.
- Click Trace
on the Editor toolbar palette.
- Right-click and click Trace Options or press the O key and make sure the offset is set to 0.
- Click to start tracing, then click to stop after you have traced completely around the void.
- Right-click anywhere on the map and click Finish Sketch.