singular

US /ˈsɪŋ.ɡjə.lɚ/
UK /ˈsɪŋ.ɡjə.lɚ/
"singular" picture
1.

of or relating to a single person or thing, as opposed to more than one

:
The word 'cat' is a singular noun.
He has a singular focus on his career.
2.

exceptionally good or great; remarkable

:
She showed singular courage in the face of danger.
His performance was of singular brilliance.
1.

the singular form of a word

:
The singular of 'children' is 'child'.
In English, most nouns have a singular and a plural form.