Difference between Happenstance and Coincidence

HAPPENSTANCE vs COINCIDENCE: NOUN

The quality of occupying the same position or area in space
An event that might have been arranged although it was really accidental
The temporal property of two things happening at the same time
The state or fact of occupying the same relative position or area in space.
A sequence of events that although accidental seems to have been planned or arranged.
A happening at the same time or existence during the same period; contemporaneousness.
Hence Concurrence; agreement in circumstance, character, etc.; more or less exact correspondence generally, or an instance of exact correspondence; especially, accidental or incidental concurrence; accidental agreement: as, the coincidence of two or more opinions.
The condition of occupying the same place in space
The condition or fact of happening at the same time.
Exact correspondence in nature, character, result, circumstances, etc.; concurrence; agreement.
Of objects, the property of being coincident; occurring at the same time or place.
Of events, the appearance of a meaningful connection when there is none.
A coincidence point.
The fact of being coincident, or of occupying the same place in space or the same position in a scale or series; exact correspondence in position: as, the coincidence of equal triangles.

Kismet, Carelessness, Forethought, Misadventure, Vagary, Unluckiness, Luck, Circumstance, Mischance, Whim, Inadvertence, Misfortune, Fortuity, Serendipity, Coincidence

Funny, Mistake, Randomness, Overlap, Circumstance, Luck, Timing, Serendipity, Fluke, Surprise, Coincidentally, Co occurrence, Conjunction, Concurrence, Happenstance

Caprice, Dint, Serendipities, Providence, Fortuitousness, Carelessness, Forethought, Misadventure, Vagary, Unluckiness, Luck, Mischance, Whim, Inadvertence, Coincidence

Mismatch, Case, Accidental, Funny, Mistake, Randomness, Overlap, Luck, Timing, Fluke, Surprise, Coincidentally, Conjunction, Concurrence, Happenstance

He chuckled and said the coincidence was awesome.
In practice, the association is often a coincidence.
Or maybe it was just a pure coincidence?.
Coincidence after coincidence has given way to miracle after miracle too numerous to name.
This section does not apply to coincidence evidence that the prosecution adduces to explain or contradict coincidence evidence adduced by the defendant.
Presumably this is just mere coincidence, but you have to at least marvel at what a horrific coincidence it is.
Irony vs Coincidence Irony and coincidence are the most often confused words in the English language.
Is that too much of a coincidence to be a coincidence?
People can discover new things by coincidence and coincidence includes invitations as well.
When does coincidence cease to be just coincidence?.