a.

1. 【文】單數的[Z]
   "One boy" is singular; "two boys" is plural.

   "一個男孩"是單數；"兩個男孩"是複數。

2. 單一的；獨個的[Z]
3. 非凡的，卓越的
   She was a lady of singular beauty.

   她長得美麗非凡。

4. 異常的；奇異的
   I had a singular experience in Africa.

   我在非洲時有過一次奇特的經歷。

n.

1. 【文】單數（形）[U][the S]
   The singular of "mice" is "mouse".

   "mice"的單數形是"mouse"。

adj.

1. Grammar  (of a word or form) denoting or referring to just one person or thing.
   ▸single; unique.
2. exceptionally good or great; remarkable.
   ▸strange or eccentric in some respect.
3. Mathematics  (of a square matrix) having a zero determinant.
4. Physics  & Mathematics  relating to or of the nature of a singularity.

n.