A sudden power outage occured during the final minutes of the game.

Although rare, an occurable complication must be considered before surgery.

We documented several occurances of unexpected latency during the experiment.

The glitch kept re-occurring despite our attempts to fix it.

The two outbreaks are co-occurring, complicating the public health response.

The team documented several potential risks, but most were classified as non-occurring under current conditions.

After the non-occurring of the annual meeting, many questions remained unanswered.

If the symptoms re-occur, contact your doctor immediately.

Every time we patch the roof, the leak re-occurs when the monsoon arrives.

After the initial test, the issue re-occurred unexpectedly.