"Has up" is a phrasal verb that means to increase or raise something to a higher level or standard. It can be replaced by various other synonyms such as elevate, enhance, boost, uplift, heighten, upgrade, raise, or improve. These words can be used interchangeably depending on the context and tone of the sentence. For example, one can say "The company has upped the quality of their products" or "The coach is trying to elevate the team's performance." Using synonyms for "has up" can make writing more interesting and diverse, and can also help to avoid repetition and monotony in language.