n.
1.a straight line through a body or figure that satisfies certain conditions
2.the center around which something rotates
3.the main stem or central part about which plant organs or plant parts such as branches are arranged
4.in World War II the alliance of Germany and Italy in 1936 which later included Japan and other nations
5.a group of countries in special alliance
6.the 2nd cervical vertebra
Idiom of the Day
keep up with (someone or something)
to go at the same speed as a person or thing, to maintain the same rate of progress as someone or something
It is difficult for the boy to keep up with the rest of the class.