Symbol
Meaning
& and
~ approximately / about / more or less
@ at
  ° degree
$ Dollar
= equals/is the same as
Euro
> greater / better / more than
infinity
< less / smaller than
- minus
# number
¶  paragraph
% per cent
+ plus, in addition to
£ Pound
§  section
\ therefore
¥ Yen
2D Two dimensional
3D Three dimensional
3G Third generation (mobile phone technology)
4D Four dimensional
4WD Four wheel drive

24/7

24 hours a day, 7 days a week

404

I don't know ^