Sleeper \Sleep"er\, n.

1. One who sleeps; a slumberer; hence, a drone, or lazy person. [1913 Webster]

2. That which lies dormant, as a law. [Obs.]

--Bacon. [1913 Webster]

3. A sleeping car. [Colloq. U.S.]

[1913 Webster]

4. (Zool.) An animal that hibernates, as the bear. [1913 Webster]

5. (Zool.)
   (a) A large fresh-water gobioid fish (Eleotris dormatrix).
   (b) A nurse shark. See under Nurse. [1913 Webster]

Source: The Collaborative International Dictionary of English v.0.48
 

Sleeper \Sleep"er\, n. [Cf. Norw. sleip a sleeper (a timber), as adj., slippery, smooth. See Slape.]

Something lying in a reclining posture or position. Specifically: [1913 Webster]
   (a) One of the pieces of timber, stone, or iron, on or near the level of the ground, for the support of some superstructure, to steady framework, to keep in place the rails of a railway, etc.; a stringpiece. [1913 Webster]
   (b) One of the joists, or roughly shaped timbers, laid directly upon the ground, to receive the flooring of the ground story. [U.S.]

[1913 Webster]
   (c) (Naut.) One of the knees which connect the transoms to the after timbers on the ship's quarter. [1913 Webster]
   (d) (Naut.) The lowest, or bottom, tier of casks. [1913 Webster]

Source: The Collaborative International Dictionary of English v.0.48
 

Tetard \Te*tard"\, n. (Zool.) A gobioid fish (Eleotris gyrinus) of the Southern United States; -- called also sleeper. [1913 Webster]

Source: The Collaborative International Dictionary of English v.0.48
 

128 Moby Thesaurus words for "sleeper": Amytal, Amytal pill, Demerol, Dolophine, H, Luminal, Luminal pill, M, Mickey Finn, Nembutal, Nembutal pill, Pullman, Pullman car, Seconal, Seconal pill, Tuinal, Tuinal pill, alcohol, amobarbital sodium, analgesic, anodyne, baggage car, barb, barbiturate, barbiturate pill, black stuff, blue, blue angel, blue devil, blue heaven, blue velvet, boxcar, caboose, calmative, car, carriage, chair car, chloral hydrate, coach, coal car, codeine, codeine cough syrup, covered waggon, day coach, depressant, depressor, diner, dinghy, dining car, dolly, downer, drawing room, flat, flatcar, gondola, goofball, hard stuff, heroin, hop, horse, hypnotic, junk, knockout drops, laudanum, lie-abed, liquor, local, lotus, luggage van, mail car, mail van, meperidine, methadone, morphia, morphine, narcotic, opiate, opium, pacifier, pain killer, palace car, paregoric, parlor car, passenger car, pen yan, phenobarbital, phenobarbital sodium, purple heart, quietener, railway car, rainbow, red, reefer, refrigerator car, roomette, scag, secobarbital sodium, sedative, shit, sleep-inducer, sleeping beauty, sleeping draught, sleeping pill, sleepwalker, sleepyhead, slugabed, smack, smoker, smoking car, sodium thiopental, somnambulist, somnifacient, somniloquist, soother, soothing syrup, soporific, stockcar, tank, tar, tender, tranquilizer, truck, turps, van, waggon, white stuff, yellow, yellow jacket

Source: Moby Thesaurus II by Grady Ward, 1.0
 

sleeper

Source: WordNet (r) 2.0
 

Sleeper \Sleep"er\, n.

1. One who sleeps; a slumberer; hence, a drone, or lazy person.

2. That which lies dormant, as a law. [Obs.]

--Bacon.

3. A sleeping car. [Colloq. U.S.]

4. (Zo["o]l.) An animal that hibernates, as the bear.

5. (Zo["o]l.)
   (a) A large fresh-water gobioid fish (Eleotris dormatrix).
   (b) A nurse shark. See under Nurse.

Source: Webster's Revised Unabridged Dictionary (1913)
 

Sleeper \Sleep"er\, n. [Cf. Norw. sleip a sleeper (a timber), as adj., slippery, smooth. See Slape.]

Something lying in a reclining posture or position. Specifically:
   (a) One of the pieces of timber, stone, or iron, on or near the level of the ground, for the support of some superstructure, to steady framework, to keep in place the rails of a railway, etc.; a stringpiece.
   (b) One of the joists, or roughly shaped timbers, laid directly upon the ground, to receive the flooring of the ground story. [U.S.]


   (c) (Naut.) One of the knees which connect the transoms to the after timbers on the ship's quarter.
   (d) (Naut.) The lowest, or bottom, tier of casks.

Source: Webster's Revised Unabridged Dictionary (1913)
 

Tetard \Te*tard"\, n. (Zo["o]l.) A gobioid fish (Eleotris gyrinus) of the Southern United States; -- called also sleeper.

Source: Webster's Revised Unabridged Dictionary (1913)