'apologise' definitions:

Defend, explain, clear away, or make excuses for by reasoning; "rationalize the child's seemingly crazy behavior"; "he rationalized his lack of success" [syn: apologize, apologise, excuse, justify, rationalize, rationalise]

Acknowledge faults or shortcomings or failing; "I apologized for being late"; "He apologized for the many typoes" [syn: apologize, apologise]