Connotation refers to the feeling associated with a word. Even if two words mean almost the same thing, they can have very different connotations.

True, not sure what the question is.

Explanation:

Examples: Someone who is in charge might be described as "authoritative" or "assertive" by someone who likes the person. Someone who doesn't like that person might describe him/her as "bossy" or a "loud-mouth."

A job might be "challenging" or "difficult."

A narrow passage in a city could be a "lane" or an "alley."