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in the PONS Dictionary

rationalize [ˈræʃnəlaɪz] VB trans

1. rationalize (justify):

rationalize
дава́ть объясне́ние

2. rationalize (make efficient):

rationalize
рационализи́ровать
Present
Irationalize
yourationalize
he/she/itrationalizes
werationalize
yourationalize
theyrationalize
Past
Irationalized
yourationalized
he/she/itrationalized
werationalized
yourationalized
theyrationalized
Present Perfect
Ihaverationalized
youhaverationalized
he/she/ithasrationalized
wehaverationalized
youhaverationalized
theyhaverationalized
Past Perfect
Ihadrationalized
youhadrationalized
he/she/ithadrationalized
wehadrationalized
youhadrationalized
theyhadrationalized
See further verb tables