challenge

Collective Dictionary definition of challenge

1. 1.noun

   хүч чадлаа үзэхийг уриалан дуудах, сорилт, эргэлзээ, маргаантай асуудал, харуулын биеийн байцаалт шалгалт

   an invitation to compete or take part, especially in a game or argument

   - "I bet you can't eat all that food on your plate." "Is that a challenge?"

2. 2.verb

   дуудах, маргалдах, булаалдах, чадлыг сорих, харуул зогсох тушаал өгч биеийн байцаалт шалгах

   (the situation of being faced with) something that needs great mental or physical effort in order to be done successfully and therefore tests a person's ability

   - Finding a solution to this problem is one of the greatest challenges faced by scientists today.