round out

(verb) fill out. Synonyms: round out, finish out. Example: "These studies round out the results of many years of research."

(verb) make bigger or better or more complete. Synonyms: round out, fill out.

(verb) express as a round number. Synonyms: round off, round down, round out, round. Example: "Round off the amount."

(verb) make round. Synonyms: round, round out, round off. Example: "Round the edges."