Wiktionary
vb. 1 (context intransitive English) to become rounder, plumper 2 (context transitive English) To make more complete by adding details.
WordNet
v. fill out; "These studies round out the results of many years of research" [syn: finish out]
make bigger or better or more complete [syn: fill out]
express as a round number; "round off the amount" [syn: round off, round down, round]
Usage examples of "round out".
The prince had the Parkins and Spencer set for bolt action, and Pahner watched as he jacked the spent round out of the chamber and caught it in midair.
The large weapons platform shot the massive hyper-velocity round out like a pumpkin seed and continued on its path.
He pulled a fresh round out of his vest, chambered it, and put the empty case where the new one had been.
It is in the creation of new puzzles reflecting what your senses report that you round out the definitions.
He softened his refusal by explaining to her that acting was a difficult profession and that suffering and sacrifice were necessary to round out the artist.