Realize
Definition 1 of 4
Pro Tip 1/2
Sudden Recognition
Use 'realize' when a person suddenly understands something that wasn't clear before. Walking in the park, I suddenly realized the answer to the riddle.
Pro Tip 2/2
First-time Acknowledgment
Expresses when a person acknowledges or accepts a fact for the first time. He finally realized he was wrong in the argument.