WordNet

ride or float on an inflated tube; "We tubed down the river on a hot summer day"
conduit consisting of a long hollow object (usually cylindrical) used to hold and conduct objects or liquids or gases (同)tubing
electronic device consisting of a system of electrodes arranged in an evacuated glass or metal envelope (同)vacuum_tube, thermionic vacuum tube, thermionic_tube, electron_tube, thermionic_valve
(anatomy) any hollow cylindrical body structure (同)tube-shaped structure
convey in a tube; "inside Paris, they used to tube mail"
place or enclose in a tube
provide with a tube or insert a tube into
slight or limited; especially in degree or intensity or scope; "a series of death struggles with small time in between"
a garment size for a small person
the slender part of the back
limited or below average in number or quantity or magnitude or extent; "a little dining room"; "a little house"; "a small car"; "a little (or small) group" (同)little
have fine or very small constituent particles; "a small misty rain"
on a small scale; "think small"
of or relating to or inside the intestines; "intestinal disease" (同)enteric, enteral
the amount that a tub will hold; "a tub of water" (同)tubful
a large open vessel for holding or storing liquids (同)vat

PrepTutorEJDIC

(金属・ガラス・ゴムなどの)管,筒 / (絵の具・歯みがきなどの)チューブ / 《米》(列車・地下鉄の)トンネル / 《英》地下鉄(《米》subway) / (ラジオ・テレビなどの)真空管(vacuum tube) / (動植物の)管状器官
(大きさが)『小さい』,小形の;(量が)『少ない』,わずかな / 『取るに足りない』,ささいな(trivial) / 《名詞の前にのみ用いて》(仕事・活動などが)『小規模の』,ささやかな / 心が狭い,利己的な / (音・声が)弱い,小さい / (文字が)小型の,小文字の / 《the~》小さいもの;(…の)細い部分《+『of』+『名』》 / 《複数形で》《英》(衣類・ハンカチなどの)小物,小間物 / 小さく,細かく / (声などが)低く,弱く / 小規模に,こぢんまりと
腸[内]の
『おけ』,たらい / 《話》'bath 2 / (また tubful)おけ1杯[の量](の…)《+of+名》 / 《話》のろくてぶかっこうな船;《俗》でぶ,太っちょ
〈U〉管状の物 / 《集合的に》管類 / 〈C〉(ある長さの1本の)管