understand

To perceive the intended meaning of words, a language, or an explanation.

• Do you understand the instructions on the back of the box?

• She did not understand a single word of his fast explanation.

To know the reason, cause, or nature of something thoroughly.

• Scientists still do not fully understand how the virus mutates so rapidly.

• After years of study, he finally understood the underlying mechanics.

To sympathize with or comprehend the feelings, motives, or behavior of someone.

• I understand your frustration with the delays, but we are working as fast as possible.

• Did anyone really understand why she made that choice?

To infer, believe, or take something as an established fact based on information received.

• I understand that the project deadline has been moved to next Friday.

• We were given to understand that breakfast was included.