1. In mathematics, an element that is unique or distinct in some property; often refers to a point or value that behaves differently from others in a set or function
Zero is a singular element in the multiplicative group because it has no inverse.
Zero é um elemento singular no grupo multiplicativo porque não tem inverso.
2. In general usage, a component or item that stands out as remarkable, unusual, or one-of-a-kind
That artwork is a singular element in the entire collection.
Essa obra de arte é um elemento singular em toda a coleção.