Definition of "Singular" :

noun: the form of a word that is used to denote a singleton

adjective: being a single and separate person or thing

"Can the singular person be understood apart from his culture?."

adjective: beyond or deviating from the usual or expected

"Singular behavior."

adjective: unusual or striking

"Such poise is singular in one so young."

adjective: grammatical number category referring to a single item or unit

adjective: composed of one member, set, or kind

adjective: the single one of its kind

"A singular example."