Identify the part of speech for the word "too" in the sentence "The bell rang too loudly for this small room."

The word "too" in the sentence "The bell rang too loudly for this small room" functions as an adverb. It modifies the adverb "loudly" to indicate the extent or degree of how loud the bell rang. Adverbs typically provide additional information about verbs, adjectives, or other adverbs, and in this case, "too" enhances the meaning of "loudly" by suggesting that the sound was excessively loud for the context of a small room.

This usage highlights "too" as quantifying the adverb, showing that the loudness surpassed an acceptable or comfortable level. It indicates excessiveness, which is a characteristic role of adverbs, particularly those that denote degree or intensity.