There are two types of whales that have only three letters in their name. The Fin whale and the Sei whale.
fin whale
A large container name three letters long could be box or bin.
The hippopotamus is a mammal that has 12 letters in its name. and the big blue whale
nib
Dis, according to the Romans.
Trout, smelt
Mac. Short for Macintosh.
a killer whale
Typically, a line is named with two points on the line.
None of the Scandinavian countries have a name with only three letters.
Another name for the long finned pilot whale would be... Melaena
The flower with only three letters in its name is the "lily."