tail

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
cowtail fishtail
Derived from:
tail
2.
the time of the last part of something
fag end tail end
3.
any projection that resembles the tail of an animal
fint tail end
4.
5.
a spy employed to follow someone and report their movements
shadow shadower
Derived from:
tail
6.
(usually plural) the reverse side of a coin that does not bear the representation of a person's head
Antonym:
head
7.
the rear part of an aircraft
empennage tail assembly
8.