cistern - Dictionary definition and meaning for word cistern
cistern- the initial part of the word,resembles cister(sister)..yeah,,..wen u hit ur sister, then genrally a reservoir of water will flow as tears..[ general phenomenon of gals]...lol...!!
remember quant part of gre. calculate the length of the CISTERN if it filled with 1/6 th of water and blah blah blah
remember pipes and cistern chapter
circum (circumstances) + vent (preventing)....so it is like someone who can prevent bad circumstances to happen, because he is a step ahead and outwitting conditions