S: (v) poll, canvass (get the opinions (of people) by asking specific questions)
S: (v) survey (make a survey of; for statistical purposes)
S: (v) analyze, analyse, study, examine, canvass (consider in detail and subject to an analysis in order to discover essential features or meaning) "analyze a sonnet by Shakespeare"; "analyze the evidence in a criminal trial"; "analyze your real motives"
W: (n) circular [Related to: circularize, circularise] (an advertisement (usually printed on a page or in a leaflet) intended for wide distribution) "he mailed the circular to all subscribers"