I use the word ‘irony’ on occasion. It is a problematic word in that it is often used in a wide variety of ways, some of which do not match its definition in the Oxford English Dictionary that describes it as “cruelly, humorously, or strangely at odds with assumptions or expectations.” Roger Kreuz reports on the work of psychologist Joan Lucariello who classified 28 different usages of the word and grouped them under seven general headings.
Imbalances: inconsistencies or opposition in behavior or in a situation.
Example: an impoverished banker.
Losses: self-inflicted or externally imposed negative outcomes.
Example: the coworker who mocks a colleague for being clumsy, but then trips and falls.
Wins: unanticipated positive outcomes.
Example: a person who inadvertently wins a contest.
Double outcomes: someone experiences two related losses, or a win and a loss.
Example: a famous marathon runner who dies while jogging.
Dramatic: an observer is aware of what a victim does not yet know.
Example: an examiner who fails a student and then overhears the student expressing confidence about passing.
Catch-22: unavoidable loss despite taking all possible measures.
Example: a well-prepared student who is unable to remember material during an exam, and the harder she tries, the worse she performs.
Coincidence: co-occurring actions or events that have no causal basis.
Example: a person who thinks about a childhood friend she hasn’t seen in years, then runs into her the next day.
Of course, as with any issues concerning the use of language, getting universal acceptance is impossible. Not everyone will agree as to whether all these categories constitute irony and to what extent. Going by the examples given, I for one would not use the word in the senses of ‘wins’ and ‘coincidence’ and am doubtful about ‘dramatic’.