Synonyms of the word

motile

• adj. (biology) Having the power to move spontaneously.
• adj. Producing motion.
• adj. (psychology) Of or relating to those mental images that arise from the sensations of bodily movement and…
• n. (psychology) A person whose prevailing mental imagery takes the form of inner feelings of action, such…

beholder

• n. Someone who observes or beholds; an observer or spectator.
• n. (fantasy) A fictional monster in roleplaying games, a floating orb of flesh with a large mouth and many…

mobile

• adj. Capable of being moved.
• adj. By agency of mobile phones.
• adj. Characterized by an extreme degree of fluidity; moving or flowing with great freedom.
• adj. Easily moved in feeling, purpose, or direction; excitable; changeable; fickle.
• adj. Changing in appearance and expression under the influence of the mind.
• adj. (biology) Capable of being moved, aroused, or excited; capable of spontaneous movement.
• n. A sculpture or decorative arrangement made of items hanging so that they can move independently from each…
• n. A mobile phone (Wikipedia).
• n. Something that can move.

observer

• n. One who makes observations, monitors or takes notice.
• n. One who adheres or follows laws, guidelines, etc.
• n. A person sent as a representative, to a meeting or other function to monitor but not to participate.
• n. A country or other entity which has limited participation rights within an organization.
• n. (military) A crew member on an aircraft who makes observations of enemy positions or aircraft.
• n. (military) A sentry etc. manning an observation post.

perceiver

• n. Agent noun of perceive; one who perceives.

percipient

• adj. Having the ability to perceive, especially to perceive quickly.
• adj. (psychology, education, dated) Perceiving events only in the moment, without reflection, as a very young…
• n. (philosophy, psychology) One who perceives something.
• n. (parapsychology) One who has perceived a paranormal event.