Sharp is a noun, not a verb, and a replacement might be, "Keen"
A verb is a action, sharp is a adjective
Sharp, sharper, and sharpest are the comparative and superlative degrees of the word sharp.
"Sharp" can function as both an adjective and a verb. As an adjective, it describes a noun (e.g., sharp knife). As a verb, it can mean to make something sharper or more intense (e.g., sharpen a pencil).
"Snap" can be both a noun and a verb. As a noun, it refers to a sudden, sharp cracking sound. As a verb, it means to make a sudden, sharp cracking sound or to break or cause something to break with a sharp sound.
"Shouted" is a verb. It is the past tense of the verb "shout", which means to speak loudly in a sharp tone.
Replace is a verb.
You have hunger pangs. That means you have sudden sharp pains in your stomach. A pain is a thing. It is a noun.
"Yelp" can be a noun or a verb. As a noun, it refers to a sharp, high-pitched cry or bark. As a verb, it means to utter a sharp, quick cry or bark.
The word 'replace' is a verb: replace, replaces, replacing, replaced.The noun forms for the verb to replace are replacement and the gerund, replacing.
The verb of sharpness is sharpen. As in "to sharpen something".
yes
No, "replace" is not an adverb. "Replace" is typically used as a verb in a sentence to indicate the action of putting something back in the place of something else.