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.
(..) But it's a good thing to have just as a threat. I'm gonna go do my dirt. Travis. Look. A piece of Errol Flynn's bathtub. Dig the symbols. "F- -----" The watermark. There's one person. There's two persons, and there's three persons. (..)1976 Taxi Driver