Fill

n.
  1. One of the thills or shafts of a carriage.
  2. Fill horse ,
    a thill horse.

v. t.
  1. To make full; to supply with as much as can be held or contained; to put or pour into, till no more can be received; to occupy the whole capacity of.
  2. To furnish an abudant supply to; to furnish with as mush as is desired or desirable; to occupy the whole of; to swarm in or overrun.
  3. To fill or supply fully with food; to feed; to satisfy.
  4. To possess and perform the duties of; to officiate in, as an incumbent; to occupy; to hold; as, a king fills a throne; the president fills the office of chief magistrate; the speaker of the House fills the chair.
  5. To supply with an incumbent; as, to fill an office or a vacancy.
  6. (Naut.) To make an embankment in, or raise the level of (a low place), with earth or gravel.
    1. To press and dilate, as a sail; as, the wind filled the sails.
    2. To trim (a yard) so that the wind shall blow on the after side of the sails.
    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.

v. i.
  1. To become full; to have the whole capacity occupied; to have an abundant supply; to be satiated; as, corn fills well in a warm season; the sail fills with the wind.
  2. To fill a cup or glass for drinking.
  3. To back and fill. See under Back, v. i. --To fill up ,
    to grow or become quite full; as, the channel of the river fills up with sand.

n.
  1. A full supply, as much as supplies want; as much as gives complete satisfaction.
  2. That which fills; filling; filler; specif., an embankment, as in railroad construction, to fill a hollow or ravine; also, the place which is to be filled.