n.
1.(mathematics) a symbol that represents a function from functions to functions
2.an agent that operates some apparatus or machine
3.someone who owns or operates a business
4.a shrewd or unscrupulous person who knows how to circumvent difficulties
5.a speculator who trades aggressively on stock or commodity markets
Idiom of the Day
a tempest in a teapot
great excitement about something that is not very important
The problem was a tempest in a teapot and after a few days everyone forgot about it.
