"Living up" is a phrase that means meeting expectations or living to one's potential. There are several synonyms for this phrase that can be used in place of it, such as "meeting expectations," "fulfilling potential," "delivering on promises," "exceeding expectations," and "rising to the occasion." Other alternatives can include phrases like "finding success," "reaching one's goals," "achieving greatness," "living to the fullest," and "making the most of life." Depending on the context, any of these synonyms can be substituted for "living up" to express a similar idea of achieving and surpassing expectations.