sighting noun
ADJ. confirmed, reliable | unconfirmed | reported | rare | UFO
VERB + SIGHTING have We now have three confirmed sightings of an enemy plane. | report | follow up, investigate The police are now following up a number of reported sightings of the missing woman's car.
PREP. ~ of
You can also check other dicts: sighting (English, 中文解释 ), wordnet sense, Collins Definition