The term "the brush-off" refers to a dismissive or disinterested response to someone or something. There are several synonyms for this phrase, including snub, rebuff, rejection, cold shoulder, and ignore. A snub implies a deliberate and intentional act of disregarding or rejecting someone. A rebuff is a blunt and harsh response that signals disinterest or disapproval. A rejection is a formal denial of something requested or offered, while a cold shoulder indicates a lack of warmth or friendly attention. Finally, ignoring someone involves outright disregard or indifference towards them. While all of these terms describe a similar act of dismissal, each has a slightly different connotation and should be used in the appropriate context.