FILL v.
earth or gravel. To fill in, to insert; as, he filled in the figures. -- To fill out, to extend or enlarge to the desired limit; to make complete; as, to fill out a bill. -- To fill up, to make quite full; to fill to the brim or entirely; to occupy completely; to complete. "The bliss that fills up all the mind." Pope…
FLAT n.
A level surface, without elevation, relief, or prominences; an extended plain; specifically, in the United States, a level tract along the along the banks of a river; as, the Mohawk Flats. Envy is as the sunbeams that beat hotter upon a bank, or steep rising ground, than upon a flat. Bacon.
FORMIC a.
Pertaining to, or derived from, ants; as, formic acid; in an extended sense, pertaining to, or derived from, formic acid; as, formic ether. Amido formic acid, carbamic acid. -- Formic acid, a colorless, mobile liquid, HCO.OH, of a sharp, acid taste, occurring naturally in ants, nettles, pine needles, etc., and produce…