Observe \Ob*serve"\, v. i.
   1. To take notice; to give attention to what one sees or
      hears; to attend.
      
[1913 Webster]


   2. To make a remark; to comment; to make an observation[3];
      -- generally with on or upon.
      [1913 Webster +PJC]

            I have barely quoted . . . without observing upon
            it.                                   --Pope.
      
[1913 Webster]


   Syn: To remark. See {Remark}.
        
[1913 Webster]

Observe \Ob*serve"\ ([o^]b*z[~e]rv"), v. t. [imp. & p. p.
   {Observed} ([o^]b*z[~e]rvd"); p. pr. & vb. n. {Observing}.]
   [L. observare, observatum; ob (see {Ob-}) + servare to save,
   preserve, keep, heed, observe: cf. F. observer. See {Serve}.]
   1. To take notice of by appropriate conduct; to conform one's
      action or practice to; to keep; to heed; to obey; to
      comply with; as, to observe rules or commands; to observe
      civility.
      
[1913 Webster]


            Ye shall observe the feast of unleavened bread.
                                                  --Ex. xii. 17.
      
[1913 Webster]


            He wolde no such cursedness observe.  --Chaucer.
      
[1913 Webster]


            Must I budge? Must I observe you?     --Shak.
      
[1913 Webster]


            With solemn purpose to observe
            Immutably his sovereign will.         --Milton.
      
[1913 Webster]


   2. To be on the watch respecting; to pay attention to; to
      notice with care; to see; to perceive; to notice; to
      discover; as, to observe an eclipse; to observe the color
      or fashion of a dress; to observe the movements of an
      army; to observe an accident.
      [1913 Webster +PJC]

   3. To express as what has been noticed; to utter as a remark;
      to say in a casual or incidental way; to remark.
      
[1913 Webster]