When looking at a boxer’s record, one of the primary indicators of brilliance is not just the number of wins they have or their unbeaten record but the number of knockout victories they possess.
When the referee is able to give a ten count to a fallen or dizzy boxer who cannot get back to their feet inside the time limit, it is considered a knockout.
Article source: https://starprocombat.co.uk/blog/Technical-Knockout-vs-Knockout-Difference-between-KO-and-TKO-in-Boxing