n.

1. 新月；弦月[C]
   The crescent is a beautiful sight to watch, especially for lovers.

   弦月是个很好看的景象，尤其对于恋人而言。

2. 新月状物；新月形面包；新月形街道[C]
3. 新月旗；（常作the C-）土耳其；伊斯兰教[the S]

a.

1. 新月形的
   a crescent pin

   月牙形饰针

2. 逐渐增大的
   the crescent darkness

   渐浓的夜色

n.

1. the curved shape of the waxing or waning moon.
2. a thing which has the shape of a single curve, especially when broad in the centre and tapering to a point at each end.
   ▸chiefly Brit. a street or terrace of houses forming an arc.
3. (the Crescent) chiefly historical the political power of Islam or of the Ottoman Empire.

adj.

1. having the shape of a crescent:
   a crescent moon.
2. literary growing, increasing, or developing.