noon       
noun [ U ] uk/nuːn/ us/nuːn/
A2 正午,中午
twelve o'clock in the middle of the day, or about that time
  We used to ski before noon and then have a long lunch. 我们过去经常在中午之前滑雪,然后慢悠悠地吃午餐。 
 By noon, we had had ten phone calls. 到中午时,我们已经接了10个电话。 
 Synonym: midday
See also: high noon
 - More examples
 - Hotel guests are requested to vacate their rooms by twelve noon.
 - There's a notice outside the building which says 'No admission before 12 noon'.
 - The swimming pool doesn't get busy until noon.
 - I finish work at noon on Saturday, so we could go for a coffee then.
 - The train gets in just before noon.