n.

1. 競爭，角逐[U][（+with/between/for）]
   Competition among youths to enter the best colleges is intense.

   年輕人想進一流大學的競爭是很激烈的。

2. 比賽，競賽；賽會[C][+to-v]
   I entered a chess competition and finished third.

   我參加了象棋比賽名列第三。

3. （總稱）競爭者；比賽對手[U]
   He's no competition for Henry.

   他不是亨利的對手。

n.

1. the activity or condition of competing against others.
   ▸Ecology  interaction between species or organisms which share a limited environmental resource.
2. an event or contest in which people compete.
   ▸those with whom one is competing:

   you have to innovate to stay ahead of the competition.