Verb
1. 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"2. make mention of;
"She observed that his presentation took up too much time""They noted that it was a fine day to go sailing"3. observe with care or pay close attention to;
"Take note of this chemical reaction"4. watch attentively;
"Please observe the reaction of these two chemicals"5. show respect towards;
"honor your parents!"6. celebrate, as of holidays or rites;
"Keep the commandments""celebrate Christmas""Observe Yom Kippur"7. follow with the eyes or the mind;
"Keep an eye on the baby, please!""The world is watching Sarajevo""She followed the men with the binoculars"8. observe correctly or closely;
"The pianist kept time with the metronome""keep count""I cannot keep track of all my employees"9. conform one's action or practice to;
"keep appointments""she never keeps her promises""We kept to the original conditions of the contract"