an interruption in the intensity or amount of something
"The company experienced a significant hiatus in its daily sales figures after the holiday season."
a missing piece (as a gap in a manuscript)
"The editor had to insert blank paper over the hiatus where the scribe accidentally skipped three entire pages of the medieval manuscript."
A gap in a series, making it incomplete.
"The movie franchise fell into a long hiatus that left fans wondering when the next installment would arrive."