Plug \Plug\, n. [Akin to D. plug, G. pflock, Dan. pl["o]k, plug, Sw. plugg; cf. W. ploc.]

1. Any piece of wood, metal, or other substance used to stop or fill a hole; a stopple. [1913 Webster]

2. A flat oblong cake of pressed tobacco. [U. S.]

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3. A high, tapering silk hat. [Slang, U.S.]

[1913 Webster]

4. A worthless horse. [Slang, U.S.]

[1913 Webster]

5. (Building) A block of wood let into a wall, to afford a hold for nails. [1913 Webster]

6. An act of plugging[6]; a brief mention for the sake of publicity or advertisement, especially during a public event not specifically intended for advertising purposes; as, he put in a plug for his favorite charity. [PJC]

Breech plug (Gun.), in breech-loading guns, the metal plug or cylinder which closes the aperture in the breech, through which the gun is loaded.

Fire plug, a street hydrant to which hose may be attached. [U. S.]

Hawse plug (Naut.), a plug to stop a hawse hole.

Plug and feather. (Stone Working) See Feather, n., 7.

Plug centerbit, a centerbit ending in a small cylinder instead of a point, so as to follow and enlarge a hole previously made, or to form a counterbore around it.

Plug rod (Steam Eng.), a rod attached to the beam for working the valves, as in the Cornish engine.

Plug valve (Mech.), a tapering valve, which turns in a case like the plug of a faucet. [1913 Webster]

Source: The Collaborative International Dictionary of English v.0.48
 

Hawse \Hawse\ (h[add]z or h[add]s; 277), n. [Orig. a hawse hole, or hole in the bow of the ship; cf. Icel. hals, h[=a]ls, neck, part of the bows of a ship, AS. heals neck. See Collar, and cf. Halse to embrace.]

1. A hawse hole. --Harris. [1913 Webster]

2. (Naut.)
   (a) The situation of the cables when a vessel is moored with two anchors, one on the starboard, the other on the port bow.
   (b) The distance ahead to which the cables usually extend; as, the ship has a clear or open hawse, or a foul hawse; to anchor in our hawse, or athwart hawse.
   (c) That part of a vessel's bow in which are the hawse holes for the cables. [1913 Webster]

Athwart hawse. See under Athwart.

Foul hawse, a hawse in which the cables cross each other, or are twisted together.

Hawse block, a block used to stop up a hawse hole at sea; -- called also hawse plug.

Hawse piece, one of the foremost timbers of a ship, through which the hawse hole is cut.

Hawse plug. Same as Hawse block (above).

To come in at the hawse holes, to enter the naval service at the lowest grade. [Cant]

To freshen the hawse, to veer out a little more cable and bring the chafe and strain on another part. [1913 Webster] hawsehole

Source: The Collaborative International Dictionary of English v.0.48
 

Plug \Plug\, n. [Akin to D. plug, G. pflock, Dan. pl["o]k, plug, Sw. plugg; cf. W. ploc.]

1. Any piece of wood, metal, or other substance used to stop or fill a hole; a stopple.

2. A flat oblong cake of pressed tobacco. [U. S.]

3. A high, tapering silk hat. [Slang, U.S.]

4. A worthless horse. [Slang, U.S.]

5. (Building) A block of wood let into a wall, to afford a hold for nails.

Fire plug, a street hydrant to which hose may be attached. [U. S.]

Hawse plug (Naut.), a plug to stop a hawse hole.

Plug and feather. (Stone Working) See Feather, n., 7.

Plug centerbit, a centerbit ending in a small cylinder instead of a point, so as to follow and enlarge a hole previously made, or to form a counterbore around it.

Plug rod (Steam Eng.), a rod attached to the beam for working the valves, as in the Cornish engine.

Plug valve (Mech.), a tapering valve, which turns in a case like the plug of a faucet.

Source: Webster's Revised Unabridged Dictionary (1913)
 

Hawse \Hawse\ (h[add]z or h[add]s; 277), n. [Orig. a hawse hole, or hole in the ship; cf. Icel. hals, h[=a]ls, neck, part of the bows of a ship, AS. heals neck. See Collar, and cf. Halse to embrace.]

1. A hawse hole. --Harris.

2. (Naut.)
   (a) The situation of the cables when a vessel is moored with two anchors, one on the starboard, the other on the port bow.
   (b) The distance ahead to which the cables usually extend; as, the ship has a clear or open hawse, or a foul hawse; to anchor in our hawse, or athwart hawse.
   (c) That part of a vessel's bow in which are the hawse holes for the cables.

Athwart hawse. See under Athwart.

Foul hawse, a hawse in which the cables cross each other, or are twisted together.

Hawse block, a block used to stop up a hawse hole at sea; -- called also hawse plug.

Hawse hole, a hole in the bow of a ship, through which a cable passes.

Hawse piece, one of the foremost timbers of a ship, through which the hawse hole is cut.

Hawse plug. Same as Hawse block (above).

To come in at the hawse holes, to enter the naval service at the lowest grade. [Cant]

To freshen the hawse, to veer out a little more cable and bring the chafe and strain on another part.

Source: Webster's Revised Unabridged Dictionary (1913)