“understand”

To know the meaning of; to parse or have parsed correctly; to comprehend.

To perceive the truth or factuality of; to be certain of; to be certain that.

Expression of surprise.

A muscular organ that pumps blood through the body, traditionally thought to be the seat of emotion.

That has been perceived aurally.

A limited understanding of a subject can lead individuals to overestimate their expertise, often resulting in errors or misguided decisions due to false confidence.

Used to acknowledge a person's point or argument; denotes that, upon consideration, something is correct or reasonable; an expression of acknowledgment or understanding.

Explicitly, in writing, clearly and without doubt or misunderstanding, without any grey areas.