Difference between wake, poweron, and wakeorpoweron on pmset

I'm trying to use pmset to wake my macbook before a cronjob is scheduled. The documentation says a scheduled event has a type that is "one of sleep, wake, poweron, shutdown, wakeorpoweron". My question is, what's the difference between wake, poweron and wakeorpoweron? Sorry if this is a dumb question! Thanks

• wake wakes up a sleeping Mac, e.g. a Mac that has slept by inactivity or Sleep from the Apple menu.
• poweron turns on a powered off Mac, e.g. a Mac that has been shut down from the Shut Down menu from the Apple menu.
• wakeorpoweron performs a wake if the Mac is sleeping or a poweron if the Mac is off.