#1 rationalise v. [rationalize] structure and run according to rational or scientific principles in order to achieve desired results; "We rationalized the factory's production and raised profits". wn
#2 rationalise v. [apologize, apologise, excuse, justify, rationalize] defend, explain, clear away, or make excuses for by reasoning; "rationalize the child's seemingly crazy behavior"; "he rationalized his lack of success". wn
#3 rationalise v. [rationalize] think rationally; employ logic or reason; "When one wonders why one is doing certain things, one should rationalize". wn
#4 rationalise v. [rationalize] remove irrational quantities from; "This function can be rationalized". wn
#5 rationalise v. [cut, prune, rationalize] weed out unwanted or unnecessary things; "We had to lose weight, so we cut the sugar from our diet". wn
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