Noun
1. the posterior part of the body of a vertebrate especially when elongated and extending beyond the trunk or main part of the body
2. the time of the last part of something;
"the fag end of this crisis-ridden century""the tail of the storm"3. any projection that resembles the tail of an animal
4. the fleshy part of the human body that you sit on;
"he deserves a good kick in the butt""are you going to sit on your fanny and do nothing?"5. a spy employed to follow someone and report their movements
6. (usually plural) the reverse side of a coin that does not bear the representation of a person's head
7. the rear part of an aircraft
8. the rear part of a ship