Wasn't it a fortunate coincidence that I happened to turn up at the right time?

She hadn't been expecting Stephen to return this evening; what a fortunate coincidence.

It is perhaps a fortunate coincidence that you match her so closely.

"That my actions will benefit you as well is merely a fortunate coincidence."

But we suspected that there would be a fortunate coincidence, and now it has occurred.

Can you think of an example of a fortunate coincidence from your own experience?

By a most fortunate coincidence, there is an American television team in the country at this very moment.

It must rank as one of the contemporary theater's most fortunate coincidences.

By a fortunate coincidence, a new medical office building had recently been completed.

It was a fortunate coincidence, because the reporter brought two other men who he said were civilian defense officials.