To have one's eyes, one's attention on something or someone.
To make mention of.
To see, discover or determine something, unclear, distant or hidden, by looking carefully.
To conform one's action or practice to.
To look after; be the keeper of; have charge of.
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"
make mention of; "She observed that his presentation took up too much time"; "They noted that it was a fine day to go sailing"
observe with care or pay close attention to; "Take note of this chemical reaction"
watch attentively; "Please observe the reaction of these two chemicals"
celebrate, as of holidays or rites; "Keep the commandments"; "celebrate Christmas"; "Observe Yom Kippur"
conform one's action or practice to; of appointments, promises, conditions, etc.
observe correctly; "keep time, keep count, keep track of"
show respect towards; "honor your parents!"
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"
observe correctly or closely; "The pianist kept time with the metronome"; "keep count"; "I cannot keep track of all my employees"
conform one''s action or practice to; "keep appointments"; "she never keeps her promises"; "We kept to the original conditions of the contract"
stick to correctly or closely
make mention of
observe with care or pay close attention to
discover or determine the existence, presence, or fact of
