The term "ko'ing" is often used in the context of boxing and other combat sports. It refers to the act of knocking out an opponent with a single punch, rendering them unconscious and unable to continue the fight. Some possible synonyms for "ko'ing" include "knocking out," "putting to sleep," "dropping," "stunning," "felling," and "flooring." Each of these terms implies a different degree of force or impact, but all refer to the same basic action of rendering an opponent unconscious. Whether you're a fan of combat sports or simply interested in the language of physical competition, these synonyms offer a range of choices for describing a powerful and decisive blow.