To perceive or sense something; to become aware or notice (often of a change or danger).
彼は背後に誰かいることをすぐに悟った。
He immediately realized there was someone behind him.
においで火事を悟ったので、すぐに出た。
He sensed a fire from the smell and got out immediately.
To understand or comprehend; to realize (often a deep or sudden understanding).
何度も練習して、ようやくやり方を悟った。
After practicing many times, I finally understood how to do it.
その経験で人間の弱さを悟った。
Through that experience I came to understand human weakness.
In Buddhism: to attain enlightenment (satori); to reach spiritual awakening or realization.
彼は長年の修行の末に悟りを開いたと言われる。
It is said he opened (attained) enlightenment after many years of practice.
禅では、座禅を通して真理を悟ることが目標とされる。
In Zen, the goal is to realize the truth through zazen (seated meditation).