In slang, ISO is an abbreviation that means In Search Of. It is widely used in social sites, clubs, e-business sites, and discussion platforms when an individual wants something particular. Through ISO, people are able to use a short sentence to say what they require without writing a sentence. It may be about goods, services, suggestions, facts, or even people. For example:
ISO good babysitter in my locality.
Saturday and Sunday ISO concert tickets.
The term is particularly common with Facebook groups, buy-and-sell pages, Craigslist-type listings, and local community boards. It assists in addressing brevity, clarity, and readability of posts.