IPA: /ˈsɪŋɡjʊləli/
KK: /ˈsɪŋɡjələrli/
In a way that is unique or different from what is usual; in a strange or odd manner.
She approached the problem singularly, thinking outside the box.
Singularly is formed from "singular" (from Latin "singularis", meaning alone or unique) and the suffix "-ly" (meaning in a manner of). The word "singularly" means in a unique or individual manner.
Think of something being 'unique' ('singular') and done 'in a manner' ('-ly') — that's why singularly means doing something in a unique way.