| Idiom | Meaning | Example | 
| nervous breakdown | 
(See breakdown)
 | 
 | 
| nest egg | 
money for retirement, life savings
 | 
After selling the farm, they had their nest egg - about $200,000.
 | 
| Net surfer | 
a person who frequently uses the Internet
 | 
Lisa is a Net surfer. She can help you get on the Internet.
 | 
| Netwar | 
an attack on computer systems via the Internet, terrorist attacks
on the Net
 | 
After 9-11, the fear is Netwar. How do we defend against attacks
on computer systems that control a city's water and electricity?
 | 
| never mind | 
do not bother to do it, do not worry, forget it
 | 
Will you help me find an idiom? Never mind. I found it.
 | 
| never say die | 
never quit, never give up
 | 
Set your goals and try to achieve them. Work hard. Never say die.
 | 
| new blood | 
different person,  someone with new ideas
 | 
Armid retired because he feels the company needs new blood.
 | 
| new kid on the block | 
new person in the office or in the class etc.
 | 
I'm the new kid on the block. I come from Portugal.
 | 
| new lease on life | 
(See a new lease on life)
 | 
 | 
| new legs | 
young runners or players, rested players
 | 
The Geritols have a lot of old players. They need new legs.
 |