Answers

2016-03-15T19:50:10+05:30
The expression of one's meaning by using language that normally signifies the opposite,typically for humorous or emphatically effect
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2016-03-15T20:15:22+05:30
Irony is the use of words to convey the opposite of their literal meaning. 
a situation in which there is an incongruity between what is expected and what occurs .
for example..the titanic was promoted as being 100% unsinkable..but in 1912 the ship sank on its maiden voyage.
hope it helped :)
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