Glossary
Appellee
The party defending the lower court's decision in an appeal. The appellee is asking the appellate court to leave the trial court's ruling alone.
If you won at the trial court and the other side files an appeal, you become the appellee. Your job at the appellate court is the opposite of the appellant's: you argue that the trial court got it right, that any errors were harmless, and that the higher court should affirm the decision below.
Some courts call this party the "respondent" instead of the appellee, depending on local custom.