There are several synonyms that can be used for the term "peak daily capacity". Some alternatives may include "maximum daily output", "highest daily production rate", "peak production volume", or "maximum daily capacity". Each of these synonyms carries a similar meaning as "peak daily capacity" and can be used interchangeably to describe the maximum amount of production possible in a single day. Understanding and utilizing these synonyms can help to expand one's vocabulary and better communicate production capacity in a business or manufacturing setting.