Take down a notch is an idiom that means to reduce the status or importance of someone or something. The crossword solutions for this term are DEMEAN (6 letters), DEMOTE (6 letters), ABASE (5 letters) and LESSEN (6 letters). DEMEAN means to lower someone's dignity or self-respect, while DEMOTE means to reduce someone in rank or position. ABASE means to lower someone in their own estimation, and LESSEN means to make something smaller or less in amount.