He got the bit between the teeth with Rebekah Brooks when she had a go at him and realized he had nothing to lose.
The officer passed a form across the table and handed me a ballpoint pen, and I realized that this was war.
He realized that these were abnormal times and people who followed the normal rules were at risk.
1610s, "bring into existence," from French réaliser "make real" (16c.), from Middle French real "actual" (see real (adj.)). Sense of "understand clearly, make real in the mind" is first recorded 1775. Sense of "obtain, amass" is from 1753. Related: Realized; realizing.