This is the 7862nd most frequent Japanese word.
噛ん
"噛ん" is the stem or conjugated form of the verb "噛む," meaning "to bite" or "to chew."
Here, '噛ん' refers to the act of chewing, applied in the context of the dog interacting with a physical object (the bone).
犬が骨を噛んでいる。
The dog is chewing a bone.
In this sentence, '噛ん' metaphorically indicates stumbling over words or mispronouncing them during speech.
彼は急ぎすぎて言葉を噛んでしまった。
He tripped over his words from speaking too quickly.
Here, '噛ん' means the physical act of biting into something, linked to experiencing its taste.