"Down for count" is a phrase commonly used in sports and casual conversations to describe someone who is knocked out or unable to continue. In the sporting world, synonyms include knocked out, TKO, or knocked down. In a casual setting, fainting, passed out, or unconscious could be used to describe someone who is "down for count." Other synonyms to consider include incapacitated, depleted, or exhausted. These words can be useful in a variety of settings, from describing a person who has fainted to describing a business that has failed. By using these synonyms, you can easily add variety to your language and better express your thoughts and ideas.