Synonyms        ( المترادفات)
       Synonyms are words of the same grammatical class that have a similar, but not an
      identical, meaning.
        Here are some common synonyms which we misuse, and which contain one general
      notion, but differ in the way in which they are expressed.
   
   * Contagious, epidemic, endemic.-                  (وبائى)
                       
      Contagious is used  when a disease is communicated by contact.
                                                                                              (عندما  تكون العدوى باللمس)
        eg.    Scarlet fever is contagious.
      Epidemic is used when a disease comes upon or attacks for a time a whole district.
                                                                                              ( عندما يهاجم الوباء منطقة)
         eg   An influenza is epidemic.
      Endemic is  used when  a disease prevails in a particular  class /neighbourhood.
                                                                                              ( عندما يهاجم المرض طبقة معينة)
         eg   All miners are ill. There must be an endemic disease.
  
    * Observe, notice, remark.-                       ( يلاحظ)
      To observe is a general or continuous act.( يراقب تصرف أو سلوك مستمر لفترة)
         eg   He observes the behaviour of birds.
  
      To notice is to observe in  a cursory way.    ( يلاحظ بشكل متسرع او دون عناية بالتفاصيل)
         eg   I noticed that he left early.

      To remark is to observe peculiarites of something.( يلاحظ تفاصيل شئ معين)
         eg  Did you remark the similarities between the brain and the computer?
  *

  To be continued........