Princeton's WordNet

1. tube, tubing(noun)

   conduit consisting of a long hollow object (usually cylindrical) used to hold and conduct objects or liquids or gases

2. tube, vacuum tube, thermionic vacuum tube, thermionic tube, electron tube, thermionic valve(noun)

   electronic device consisting of a system of electrodes arranged in an evacuated glass or metal envelope

3. pipe, tube(noun)

   a hollow cylindrical shape

4. tube, tube-shaped structure(noun)

   (anatomy) any hollow cylindrical body structure

5. metro, tube, underground, subway system, subway(verb)

   an electric railway operating below the surface of the ground (usually in a city)

   "in Paris the subway system is called the `metro' and in London it is called the `tube' or the `underground'"

6. tube(verb)

   provide with a tube or insert a tube into

7. tube(verb)

   convey in a tube

   "inside Paris, they used to tube mail"

8. tube(verb)

   ride or float on an inflated tube

   "We tubed down the river on a hot summer day"

9. tube(verb)

   place or enclose in a tube

Kernerman English Learner's Dictionary

1. tube(noun)tub, tyub

   a long, circular, hollow object through which liquid or gas moves

   the tubes leading from his nose to the oxygen tank

2. tubetub, tyub

   sth shaped like a tube

   the tube inside the toilet paper

3. tubetub, tyub

   a long container that you squeeze to push out what is inside

   a tube of toothpaste

4. tubetub, tyub

   a part inside the body that functions like a tube

   the tubes leading from the kidney to the bladder

Wiktionary

1. tube(Noun)

   Anything that is hollow and cylindrical in shape.

2. tube(Noun)

   An approximately cylindrical container, usually with a crimped end and a screw top, used to contain and dispense semi-liquid substances.

   A tube of toothpaste.

3. tube(Noun)

   The London Underground railway system, originally referred to the lower level lines that ran in tubular tunnels as opposed to the higher ones which ran in rectangular section tunnels. (Often the tube.)

   No mate, I am taking the tube!

4. tube(Noun)

   A tin can containing beer (or other beverage?)

5. tube(Noun)

   A wave which pitches forward when breaking, creating a hollow space inside.

6. tube(Noun)

   A television. Also, derisively, boob tube. British: telly

   Are you just going to sit around all day and watch the tube?

7. tube(Verb)

   To make or use tubes

8. Tube(ProperNoun)

   The London Underground

Origin: From tube, from tubus.

Webster Dictionary

1. Tube(noun)

   a hollow cylinder, of any material, used for the conveyance of fluids, and for various other purposes; a pipe

2. Tube(noun)

   a telescope

3. Tube(noun)

   a vessel in animal bodies or plants, which conveys a fluid or other substance

4. Tube(noun)

   the narrow, hollow part of a gamopetalous corolla

5. Tube(noun)

   a priming tube, or friction primer. See under Priming, and Friction

6. Tube(noun)

   a small pipe forming part of the boiler, containing water and surrounded by flame or hot gases, or else surrounded by water and forming a flue for the gases to pass through

7. Tube(noun)

   a more or less cylindrical, and often spiral, case secreted or constructed by many annelids, crustaceans, insects, and other animals, for protection or concealment. See Illust. of Tubeworm

8. Tube(noun)

   one of the siphons of a bivalve mollusk

9. Tube(verb)

   to furnish with a tube; as, to tube a well

The New Hacker's Dictionary

1. tube

   1. n. A CRT terminal. Never used in the mainstream sense of TV; real hackers don't watch TV, except for Looney Toons, Rocky & Bullwinkle, Trek Classic, the Simpsons, Babylon 5, and the occasional cheesy old swashbuckler movie. 2. [IBM] To send a copy of something to someone else's terminal. “Tube me that note?”

• buisAfrikaans
• أُنْبوبArabic
• тръбаBulgarian
• tuboPortuguese (BR)
• trubkaCzech
• das RohrGerman
• rør; -rørDanish
• σωλήναςGreek
• tubo, tuberíaSpanish
• toruEstonian
• لولهFarsi
• putkiFinnish
• tube, tuyauFrench
• צִינוֹרHebrew
• नलीHindi
• cijevCroatian
• csőHungarian
• pipaIndonesian
• pípa, rör, slangaIcelandic
• tuboItalian
• 管Japanese
• 관Korean
• vamzdelisLithuanian
• cauruleLatvian
• tiubMalay
• buisDutch
• rør, slangeNorwegian
• rur(k)a, wążPolish
• لولهPersian
• لوله ، ټیوبPashto
• tuboPortuguese
• tub,ţeavăRomanian
• труб(к)аRussian
• trúbka, rúra, potrubieSlovak
• cevSlovenian
• cevSerbian
• rör, slangSwedish
• ท่อThai
• tüp, boruTurkish
• 管Chinese (Trad.)
• труба, трубкаUkrainian
• ٹيوب، نلکيUrdu
• ốngVietnamese
• 管Chinese (Simp.)