The wearing of black clothing is often a 'symbol of' mourning in Western cultures.
The company's 'symbol' [='logo'] is a red umbrella.
“K” is the 'symbol for' a strikeout in baseball.
(..) only imagine the worst, can't she? Yeah. But I've never given her any reason to imagine the worst. Yeah, I know. But you're an international Latin sex symbol. She knows how many girls have got your photo on the wall. That's part of the job. She could try to understand. (..)2007 Goal II: Living the Dream