vt.

1. 擦，磨擦；使相擦[（+against/on）]
   The cat rubbed its back against my leg.

   貓用背擦我的腿。

2. 用……擦，擦上[O][（+on/over/into）]
   He rubbed himself with a towel after the cold shower.

   他冷水淋浴後用毛巾擦身。

3. 把……磨擦得[O][O8]
4. 觸痛，惹怒
   His rough manner rubbed her.

   他粗野的舉止惹惱了她。

5. 摹拓

vi.

1. 磨擦；擦到[（+on/against）]
   The door rubs on the floor.

   這門擦到地板了。

2. 被擦掉[（+off/out）]
3. （皮膚等）擦破，擦痛；（衣服等）磨損
4. 使人惱火（或煩惱）

n.

1. 摩擦，擦[S]
   Give the table a good rub.

   把這張桌子好好擦一擦。

2. 磨損處；擦痛處[U]
3. 阻難；疑難點；要點[the S]
   We need money badly, but there's the rub: no one will lend us any.

   我們急需要錢，但困難的是：誰也不會借錢給我們。

4. 嘲諷[U]

v.

1. apply firm pressure to the surface of, using a repeated back and forth motion.
   ▸move to and fro against a surface.
   ▸apply with a rubbing action:

   she rubbed some cream on her nose.
   ▸ (rub something in/into/through) blend or mix ingredients together using a rubbing action:

   rub in the fat.
   ▸ (rub something down) dry, smooth, or clean something by rubbing.
   ▸ (rub something out) chiefly Brit. erase pencil marks with a rubber.
2. (rub off) be transferred by contact or association.
3. (rub along) Brit. informal cope or get along without undue difficulty.
4. reproduce the design of (a sepulchral brass or a stone) by rubbing paper laid on it with pencil or chalk.
5. Bowls  (of a bowl) be slowed or diverted by the unevenness of the ground.

n.

1. an act of rubbing.
2. an ointment designed to be rubbed on the skin.
3. (usu. the rub) the central or most important difficulty. [from Shakespeare's Hamlet (iii. i. 65).]
4. Bowls  an inequality of the ground impeding or diverting a bowl.
   ▸the diversion or hindering of a bowl by this.