Pardon my possible "stupid" question, what does ISO mean?

In search of

My interpretations is that it means "in search of"....you can do a search for Abbreviations on the board and find a list of a lot of the abbreviations that are used.

thanks so much :)

It's not a stupid question.

In Search Off - ISO

Many abbreviations I don't understand either.

In search of ( ISO )
No question is "stupid " :-)
There is a place that most of the abreviations are shown.
Do a search at top of page. I can not find the link for it, but some one will opst it for you. You can print it off. Hope this helped.

i still come across ones i dont know