observer

1. A person who becomes aware (of things or events) through the senses (synset 109649777)
   is a type of: individual, mortal, person, somebody, someone, soul - a human being
   subtypes:

   • eyeglass wearer - a person who wears spectacles in order to see better
   • discoverer, finder, spotter - someone who is the first to observe something
   • attender, auditor, hearer, listener - someone who listens attentively
   • audile - one whose mental imagery is auditory rather than visual or motor
   • motile - one whose prevailing mental imagery takes the form of inner feelings of action
   • noticer - someone who takes notice
   • seer - an observer who perceives visually
   • looker, spectator, viewer, watcher, witness - a close observer; someone who looks at something (such as an exhibition of some kind)
   • visualiser, visualizer - one whose prevailing mental imagery is visual
   • informant, witness, witnesser - someone who sees an event and reports what happened
   same as: beholder, perceiver, percipient
2. An expert who observes and comments on something (synset 110389227)
   is a type of: expert - a person with special knowledge or ability who performs skillfully
   subtypes: annotator - a commentator who writes notes to a text
   same as: commentator

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