noun
The act of swallowing food, drink, etc. Often used in phrases like 飲み込みが悪い (difficulty swallowing).
See also: 飲み込む
薬の飲み込みが苦手だ。
I have trouble swallowing pills.
noun
understanding; comprehension; grasp
The ability to understand or catch on quickly. Common in expressions like 飲み込みが早い (quick to understand) or 飲み込みが悪い (slow on the uptake).
See also: 飲み込む
彼は飲み込みが早いから、すぐに仕事を覚えた。
He's a quick learner, so he picked up the job right away.
The verb form; 飲み込み is the nominalized version, often used to describe the quality of swallowing or understanding.
Nominalized form of the verb 飲み込む (to swallow; to understand).