This is the 995th most frequent Finnish word.
de
"De" is not a Finnish word; it is Swedish for "they" or "them."
'de facto' is used here in a Latin phrase adopted into Finnish, meaning 'in fact' or 'in reality.' It is unmodified and embedded directly into Finnish sentences.
Tämä on osoitus de facto -tilanteesta.
This is an indication of the de facto situation.
The word 'de' is part of the name 'de Gaulle,' which is of French origin and indicates a noble lineage or geographical reference in French.
Kirja käsitteli de Gaullen elämää ja uraa.
The book covered de Gaulle's life and career.
Here, 'De' is capitalized as part of the Dutch name 'De Ruyter,' which might signify 'the rider.' This use retains the original language convention.