Denotation what it mean

Referring to something by meanings of a word, and or symbol.

For instance rainbows means good luck or you zodiac sign is a sense of denotation

the literal or primary meaning of a word, in contrast to the feelings or ideas that the word suggests.

"beyond their immediate denotation, the words have a connotative power"

the action or process of indicating or referring to something by means of a word, symbol, etc.