k. o.

k.o. (sometimes proscribed)

• IPA^(key): /kaːˈʔoː/

• Audio:

  (file)

k. o. (strong nominative masculine singular k. o.er, not comparable)

1. (boxing) Initialism of knockout (“knocked out”).
2. (informal, by extension) exhausted, beat, tired

   Nach der langen Reise war ich total k. o. ― After the long journey, I was totally beat.

• “k. o.” in Duden online
• “k. o.” in Digitales Wörterbuch der deutschen Sprache