Another quote from Learning from Las Vegas

The double-hung windows denote their function, but their group connotes domesticity and ordinary meanings.
Denotation indicates specific meaning; connotation suggest general meanings. The same element can have both denotative and connotative meanings, and these many be mutually contradictory.

These are powerful words and I blog this to help myself (and maybe others) keep track of the difference between the two and use them both more effectively.