What is the comparative and superlative form of word well?

The word "well" is an adverb, not an adjective, so it doesn't have comparative and superlative forms in the traditional sense. However, we can use other adverbs to express degrees of well-being or quality:

Comparative:

* Better: This is the comparative form of "good."

* More well: While grammatically correct, this is often considered awkward. It's better to use "better" in most cases.

* More effectively: This emphasizes a specific aspect of "well," such as how well a task is performed.

Superlative:

* Best: This is the superlative form of "good."

* Most well: Again, this is grammatically correct but awkward. Use "best" instead.

* Most effectively: This emphasizes the highest degree of effectiveness.

Example:

* "He played the piano well." (Simple)

* "He played the piano better than anyone else." (Comparative)

* "He played the piano best of all." (Superlative)