noun, verbal noun
A stop that's just a rest (aka not permanent) isn't a straight up stop. You're planning on continuing again. That's why this is a suspension, or a pause.
This is a fairly formal word, and it's often used when an activity or a service is temporarily suspended. For example, you could use it to talk about a pop band going on a hiatus or a machine suspending its operation.
This is a jukugo word, which usually means on'yomi readings from the kanji. If you know the readings of your kanji you'll know how to read this as well.
This class will be on hiatus for a while.
News of the popular rock band's hiatus came to my attention.
My first kiss happened in an elevator that was stuck.