This is the 472nd most frequent Estonian word.
vallas
"In the parish" or "under municipal jurisdiction."
The word 'vallas' is used here to mean 'field' or 'area', referring to a domain of knowledge or activity.
Ta töötab hariduse vallas.
He works in the field of education.
Here, 'vallas' is used in the sense of a 'realm' or 'domain' related to art.
Tema looming on erakordne kunstivallas.
His creativity is exceptional in the domain of art.
In this sentence, 'vallas' refers to an administrative region or municipality.