Godan verb with 'mu' ending, Transitive verb
to swallow; to gulp down
洪水がその村を飲み込んでしまった。The flood overwhelmed the village. to understand; to grasp; to take in; to catch on; to learn
to engulf; to swallow up
to be filled with (people); to contain
to swallow (one's words); to suppress (a yawn, tears, etc.); to stifle; to hold back
Also written 呑み込む【のみこむ】