What does offset mean?

[fud]

I would just want to know what does offset mean... and when i see 18"*8"... does the 8" mean how wide the rim is or how much does it stands out?

[keepitclean]

If your looking for wheels for 03-04 accords you should go with an offset thats 44-55 ....if you dont want the wheel to stick out even the slightest bit I would recomend going with and 8' wide wheel any 8.5 wheel will stick out about 1/4 inch with a 45 offset or higher

[HONDA_99]

http://www.tirerack.com/wheels/tech/offset.htm
http://www.tirerack.com/images/wheels/tech/offset.gif