1. instances of seeing or observing something, especially something unusual or noteworthy

Examples

• There have been several UFO sightings reported in the area this month.
• Bird sightings are carefully recorded by the wildlife sanctuary.
• The rare whale sightings attracted marine biologists from around the world.
• Police are investigating multiple sightings of the suspect near the mall.
• Celebrity sightings are common in this upscale neighborhood.
• The comet sightings were visible to the naked eye for three nights.