This is the 7860th most frequent Japanese word.
噛
"噛" means "to bite" or "to chew."
Here, '噛' (kan) is used in its literal sense, indicating the act of biting or chewing.
犬が骨を噛んでいる。
The dog is chewing on a bone.
In this example, '噛み砕く' (kamikudaku), involving '噛', metaphorically means breaking down a concept to make it easier to understand.
その映画の内容が噛み砕いた説明で分かった。
I understood the content of the movie through a simplified explanation.
Here, '噛む' (kamu) is used metaphorically to describe deeply contemplating or appreciating something.