2.AdverbUsed other than figuratively or idiomatically: Once per second.
3.AdverbVery frequently; more frequently than is desired.
"Why do you keep bothering me every second?"
4.NounThe entirety of something of duration.
"The man hated every second of the ten years he served in prison for a crime he didn't commit.; After enduring traumatic experiences, many people are likely to remember every second of them."