What is the comparative noun for school?

Nouns don't have a comparative form. Adjectives are Words that have a comparative and a superlative form. The Word 'school' is a noun and a verb, not an adjective.

Some synonyms for the noun 'school' are:

• academy
• belief
• college
• discipline
• institute
• university

Some synonyms for the verb 'school' are:

• coach
• cultivate
• discipline
• drill
• educate
• inform
• instruct
• train
• tutor