Open English Wordnet
Verbs
(v)detect, observe, find, discover, noticediscover or determine the existence, presence, or fact of by perception with the eyes“She detected high levels of lead in her drinking water”,
“We found traces of lead in the paint” (v)note, observe, mention, remarkmake mention of“She observed that his presentation took up too much time”,
“They noted that it was a fine day to go sailing” (v)note, take note, observeobserve with care or pay close attention to“Take note of this chemical reaction” (v)observewatch attentively“Please observe the reaction of these two chemicals” (v)observe, celebrate, keepbehave as expected during holidays or rites“Keep the commandments”,
“celebrate Christmas”,
“Observe Yom Kippur” (v)observe, keep, maintainstick to correctly or closely“The pianist kept time with the metronome”,
“keep count”,
“I cannot keep track of all my employees” (v)observe, keepconform one's action or practice to“keep appointments”,
“she never keeps her promises”,
“We kept to the original conditions of the contract”