Chapter Plunder to Ply of P by Webster's Dictionary (1913 Edition)

3. To bet heavily and with seeming recklessness on a race, or other contest; in an extended sense, to risk large sums in hazardous speculations. [Cant]

Plunging fire (Gun.), firing directed upon an enemy from an elevated position.

Plunge
(Plunge), n.

1. The act of thrusting into or submerging; a dive, leap, rush, or pitch into, or as into, water; as, to take the water with a plunge.

2. Hence, a desperate hazard or act; a state of being submerged or overwhelmed with difficulties. [R.]

She was brought to that plunge, to conceal her husband's murder or accuse her son.

Sir P. Sidney.

And with thou not reach out a friendly arm,
To raise me from amidst this plunge of sorrows?

Addison.

3. The act of pitching or throwing one's self headlong or violently forward, like an unruly horse.

4. Heavy and reckless betting in horse racing; hazardous speculation. [Cant]

Plunge bath, an immersion by plunging; also, a large bath in which the bather can wholly immerse himself. — Plunge, or plunging, battery (Elec.), a voltaic battery so arranged that the plates can be plunged into, or withdrawn from, the exciting liquid at pleasure.

Plunger
(Plun"ger) n.

1. One who, or that which, plunges; a diver.

2. A long solid cylinder, used, instead of a piston or bucket, as a forcer in pumps.

3. One who bets heavily and recklessly on a race; a reckless speculator. [Cant]

4. (Pottery) A boiler in which clay is beaten by a wheel to a creamy consistence. Knight.

5. (Gun.) The firing pin of a breechloader.

Plunger bucket, a piston, without a valve, in a pump. — Plunger pole, the pump rod of a pumping engine. — Plunger pump, a pump, as for water, having a plunger, instead of a piston, to act upon the water. It may be single-acting or double-acting

Plunket
(Plun"ket) n. A kind of blue color; also, anciently, a kind of cloth, generally blue.

Pluperfect
(Plu"per`fect) a. [L. plus more + perfectus perfect; cf. F. plus-que-parfait, L. plusquamperfectum.] More than perfect; past perfect; — said of the tense which denotes that an action or event was completed at or before the time of another past action or event. — n. The pluperfect tense; also, a verb in the pluperfect tense.

Plural
(Plu"ral) a. [L. pluralis, from plus, pluris, more; cf. F. pluriel, OF. plurel. See Plus.] Relating to, or containing, more than one; designating two or more; as, a plural word.

Plural faith, which is too much by one.

Shak.

Plural number (Gram.), the number which designates more than one. See Number, n., 8.

Plural
(Plu"ral), n. (Gram.) The plural number; that form of a word which expresses or denotes more than one; a word in the plural form.