knowledge - information, skills, understanding, comprehension, mastery⏎
flop - failure, washout, non-event, damp squib⏎
headway - gain, progress, increase, rise, improvement⏎
flyer - leaflet⏎
exceed - outdo, be superior, overstep⏎
guest - visitor⏎
inertia - inactivity, indifference⏎
identify - find, discover⏎
fall - decrease, drop, descend, fail⏎
inefficient - wasteful, unskillful, useless⏎