n.

1. （距離，尺寸的）長度[U][C]
   The fish is two feet in length.

   這條魚有兩英尺長。

2. （時間的）長短，期間[U][C]
   The length of the movie is two hours.

   影片長兩小時。

3. 全長；全程[the S][（+of）]
   We walked the length of the street.

   我們從街這頭走到那頭。

4. （作為長度單位的）物體的長度，動物的體長[C]
   The horse won the race by two-and-a-half lengths.

   這匹馬以兩馬身半贏得了比賽。

5. （一）段，（一）節[C][（+of）]
   We need a length of pipe.

   我們需要一節管子。

n.

1. the measurement or extent of something from end to end; the greater or greatest of two or more dimensions of an object.
   ▸the length of a horse, boat, etc., as a measure of the lead in a race.
2. the amount of time occupied by something.
3. the quality of being long.
   ▸Prosody  & Phonetics  the metrical quantity or duration of a vowel or syllable.
4. the full distance that a thing extends for:
   the muscles running the length of my spine.
   ▸the extent of a garment in a vertical direction when worn.
5. a stretch or piece of something.
6. an extreme to which a course of action is taken.
7. (in bridge or whist) the number of cards of a suit held in one's hand.
8. Cricket  the distance from the batsman at which a well-bowled ball pitches.