Answer:
blackout= I think blackout is when you see black and like fall to the ground.
overdose= i think overdoes is when you take to many drugs/pills or something and try(or accidental) to commit death or something.
Step-by-step explanation:
Blackout= 1. a failure of electrical power supply.
"due to a power blackout, their hotel was in total darkness"
2. a suppression of information, especially one imposed on the media by government.
"the total information blackout on the series of meetings"
Overdose= 1. an excessive and dangerous dose of a drug.
"I took an overdose of sleeping pills and ended up in the hospital"
2. take an overdose of a drug.
"he was admitted to the hospital after overdosing on cocaine"