1.Definition: a formal written defense of something you believe in strongly

Related Noun(s):apologia

Category: General

2.Definition: a poor example

"It was an apology for a meal", "A poor excuse for an automobile"

Related Noun(s):excuse

Category: General

3.Definition: an expression of regret at having caused trouble for someone

"He wrote a letter of apology to the hostess"

Category: General