definition of
observe

[1] #1 observe v. [detect, find, discover, notice] discover or determine the existence, presence, or fact of; "She detected high levels of lead in her drinking water"; "We found traces of lead in the paint". wn

[2] #2 observe v. [note, mention, remark] make mention of; "She observed that his presentation took up too much time"; "They noted that it was a fine day to go sailing". wn

[3] #3 observe v. [note, take note] observe with care or pay close attention to; "Take note of this chemical reaction". wn

[4] #4 observe v. watch attentively; "Please observe the reaction of these two chemicals". wn

[5] #5 observe v. [respect, honor, honour, abide by] show respect towards; "honor your parents!". wn