intermediate – adj. occurring in the middle of a process or series

significant – adj. very important

occurrence(s) – n. something that happens

range – n. a group or collection of different things or people that are usually similar in some way

validate – v. to show that something is real or correct

devoid of – adj. completely without something

consume – v. to use fuel, time, or resources

emit – v. to send light, sound or energy out from a source