Multi-Entry Tournaments allow you to register for the same tournament numerous times, meaning you can “multi-table” a single tournament!
Each of your entries in a Multi-Entry Tournament will have its own chip stack and be dealt its own hand. You can register multiple entries at the same time, or use additional entries as a “second chance” if your first entry is eliminated from the tournament in the early stages of play.
Your entries will always be seated at different tables, and if you have more entries than there are tables left in the tournament, two of your entries will be “merged” into one.
Source: Online Poker at Full Tilt Poker - Tournaments: Multi-Entry Tournaments
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