Course there is!
Good evening, Mr Jeremy. Ahem…
meaning, significance, symbolism. Got that general theme? don’t get hung up on picking holes in the words and dictionary definitions.
colours, forms, words, elicit intellectual, emotional and physiological responses in people. When a lot of people respond in the same way, and people start to understand these patterns in responses, they can use them in in their communication order to elicit the responses they want in others.
Once they’ve been used often enough, they take on a meaning/significance/symbolism in line with the reactions they tend to elicit.
Edited for english usage. I have learnt (been reminded of) something from Jeremy in this thread!