observer, postulate, examination, extrapolation, evaluation, remark, assessment, polysomnogram, supposition, observatory, monitoring, prediction, geomagnetism, synoptic, measurements, earthshine, interpretation, celestial mechanics, arteriogram, view, reasoning, empiricism, infirmary, cogitation, assertion, analogy, prognostication, dictum, pronouncement, elucidation, scrupulousness, augury, intuitions, perambulation, communicability, diurnal, intervention, digression, perceptiveness, reflections, hermeneutic, vigilance, generalization, presupposition, veneration, supervision, hypothesis, critique, vantage point, telerobotics, phenomenology, phenomenological, scotoma, aeon, casuistry, rejoinder, analysis, surveillance, admonition, astrometry, relativity theory, reference, fovea, conjecture, traumatology, stereopsis, ophthalmoscopy, radiometry, experiencer, musings, nosology, anthropological, antineutrino, quip, saccade, anthropologic, kirlian photography, anecdote, radiograph, intensive care unit, characterization, telescope, exobiology, electrocardiography, suggestion, temporariness, debriefing, hospital, theory, explanation, contemplations, astronomical telescope, utterances, juxtaposition, grond, visitations, assumption, monism, seismologic, deductive reasoning, bedrest, construal, observations, citation, investigation, application, enquiry, observa, inquiry, inspection, verification, comparison, conversation, experi, experiment, instructions, obser, ques, statement, calculation, followup, observational, sampling, testing, exploratory, instruction, solving, analytic, benchmarking, ethnographic, project, summative, acquisition, case, finding, openended, preliminary, quantification, session, collection

mind, parkinson's law, radio observation, sighting, stargazing

., air reconnaissance, art, arthur compton, arthur holly compton, artistry, ascertained, base, blimp, cardiac monitor, clinical, clutter, commemorate, compton, confirmable, constancy, contemplation, control tower, data-based, discovered, empiric, empirical, empiricism, experience, experienced, experimental, falsifiable, fetoscopy, fluoroscope, foetoscopy, hard-nosed, hardheaded, heart monitor, illation, inference, intuitive, laboratory, loophole, mark, meteorological observation post, nonrational, observational, observed, optical bench, paracelsus, parkinson's law, passionless, philippus aureolus paracelsus, practical, pragmatic, prowess, quackery, radio observation, roentgenoscope, sampler, sampling station, sausage, sausage balloon, scientific fact, scientific method, semiempirical, shadow, sketch map, space probe, stargazing, supervised, surveillance, surveillance system, synthetic, synthetical, testing ground, theophrastus philippus aureolus bombastus von hohenheim, unobservable, unsupervised, verifiable, visceral, watchtower, weather station

attending, attention, comment, fact, look, looking, looking at, measure, measurement, measuring, mensuration, notice, observance

reflection, reflexion, watching