scrutinize β to examine in detail with careful or critical attention.
speculate β to engage in thought or reflection; meditate (often followed by on, upon, or a clause).
verify β to prove the truth of, as by evidence or testimony; confirm; substantiate: Events verified his prediction.
weigh β to determine or ascertain the force that gravitation exerts upon (a person or thing) by use of a balance, scale, or other mechanical device: to weigh oneself; to weigh potatoes; to weigh gases.
futz around β to pass time in idleness (usually followed by around).
mess around β a dirty, untidy, or disordered condition: The room was in a mess.
search β to go or look through (a place, area, etc.) carefully in order to find something missing or lost: They searched the woods for the missing child. I searched the desk for the letter.
study β a room, in a house or other building, set apart for private study, reading, writing, or the like.
undertaking β the act of a person who undertakes any task or responsibility.
venture β an undertaking involving uncertainty as to the outcome, especially a risky or dangerous one: a mountain-climbing venture.
agreement β An agreement is a formal decision about future action which is made by two or more countries, groups, or people.
assay β An assay is a test of a substance to find out what chemicals it contains. It is usually carried out to find out how pure a substance is.
essay β A short piece of writing on a particular subject.
fling β to throw, cast, or hurl with force or violence: to fling a stone.
proof β evidence sufficient to establish a thing as true, or to produce belief in its truth.
quiz β an informal test or examination of a student or class.
rehearsal β a session of exercise, drill, or practice, usually private, in preparation for a public performance, ceremony, etc.: a play rehearsal; a wedding rehearsal.
scrutiny β a searching examination or investigation; minute inquiry.
speculation β the contemplation or consideration of some subject: to engage in speculation on humanity's ultimate destiny.
try β to attempt to do or accomplish: Try it before you say it's simple.
research and development β the part of a commercial company's activity concerned with applying the results of scientific research to develop new products and improve existing ones
trial and error β experimentation or investigation in which various methods or means are tried and faulty ones eliminated in order to find the correct solution or to achieve the desired result or effect.
trial run β a preliminary performance or test of something, as of the operation of a ship or the effectiveness of a play.