To fill in

Related to To fill in: To fill out
to insert; as, he filled in the figures.

See also: Fill

Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.
References in periodicals archive ?
Refusing to accept a blanket denial of the sacrifices borne by countless men, women and children in the decades of the Civil Rights era, she chose instead to fill in history's gaping holes with a written account.
Herma said after the meeting the company plans to "continue to grow the mid-Atlantic area and to fill in the Midwest," citing opportunities for more stores in Chicago, Min- neapolis and Detroit.