Where is Seong from?

Meaning of the name Seong

From Sino-Korean 成 (seong) meaning "completed, finished, succeeded", as well as other hanja characters with the same pronunciation. Although it does appear as a single-character name, it is more often used in combination with another character.

Characteristics of the name Seong

How do we know this about Seong

(and is it secret spies?)

We use a combination of data from the internet, and our own Machine Learning models to make these predictions.
In a gist, we use a Machine Learning model trained on a diverse global dataset of 100m+ names, and use it to predict different traits for a person based on first name!
NameGuessr guesses a person's nationality, age, and gender based on their name. We also try to give insightful info around the name's origin, name meaning, and name pronounciation.