Observable(a.) Worthy or capable of being observed; discernible; noticeable; remarkable.
Observance(n.) The act or practice of observing or noticing with attention; a heeding or keeping with care; performance; -- usually with a sense of strictness and fidelity; as, the observance of the Sabbath is general; the strict observance of duties.
Observance(n.) An act, ceremony, or rite, as of worship or respect; especially, a customary act or service of attention; a form; a practice; a rite; a custom.
Observance(n.) Servile attention; sycophancy.
Observancy(n.) Observance.
Observant(a.) Taking notice; viewing or noticing attentively; watchful; attentive; as, an observant spectator; observant habits.
Observant(a.) Submissively attentive; obediently watchful; regardful; mindful; obedient (to); -- with of, as, to be observant of rules.
Observant(n.) One who observes forms and rules.
Observant(n.) A sycophantic servant.
Observant(n.) An Observantine.
Observantly(adv.) In an observant manner.
Observation(n.) The act or the faculty of observing or taking notice; the act of seeing, or of fixing the mind upon, anything.
Observation(n.) The result of an act, or of acts, of observing; view; reflection; conclusion; judgment.
Observation(n.) Hence: An expression of an opinion or judgment upon what one has observed; a remark.
Observation(n.) Performance of what is prescribed; adherence in practice; observance.
Observation(n.) The act of recognizing and noting some fact or occurrence in nature, as an aurora, a corona, or the structure of an animal.
Observation(n.) Specifically, the act of measuring, with suitable instruments, some magnitude, as the time of an occultation, with a clock; the right ascension of a star, with a transit instrument and clock; the sun's altitude, or the distance of the moon from a star, with a sextant; the temperature, with a thermometer, etc.
Observation(n.) The information so acquired.
Observational(a.) Of a pertaining to observation; consisting of, or containing, observations.
Observative(a.) Observing; watchful.
Observator(n.) One who observes or takes notice.
Observator(n.) One who makes a remark.
Observe(v. i.) To take notice; to give attention to what one sees or hears; to attend.
Observe(v. i.) To make a remark; to comment; -- generally with on or upon.
Observe(v. t.) To take notice of by appropriate conduct; to conform one's action or practice to; to keep; to heed; to obey; to comply with; as, to observe rules or commands; to observe civility.
Observe(v. t.) To be on the watch respecting; to pay attention to; to notice with care; to see; to perceive; to discover; as, to observe an eclipse; to observe the color or fashion of a dress; to observe the movements of an army.
Observe(v. t.) To express as what has been noticed; to utter as a remark; to say in a casual or incidental way; to remark.
Observed(imp. & p. p.) of Observe
Observer(n.) One who observes, or pays attention to, anything; especially, one engaged in, or trained to habits of, close and exact observation; as, an astronomical observer.
Observer(n.) One who keeps any law, custom, regulation, rite, etc.; one who conforms to anything in practice.
Observer(n.) One who fulfills or performs; as, an observer of his promises.
Observer(n.) A sycophantic follower.
Observing(a.) Giving particular attention; habitually attentive to what passes; as, an observing person; an observing mind.
Observing(p. pr. & vb. n.) of Observe

Words within observator