This is the 4245th most frequent Russian word.
шмидт
"Шмидт" is a transliteration of the German surname "Schmidt," meaning "smith" or "blacksmith."
The word 'Шмидт' is used as a proper noun, referring to a surname, common in German-speaking countries.
Шмидт - это моя фамилия.
Schmidt is my surname.
Here, 'Шмидт' refers to a specific person, being a courteous form of address combined with the surname.
Господин Шмидт приехал из Берлина.
Mr. Schmidt arrived from Berlin.
In this sentence, 'Шмидт' denotes an author or scientist, whose works are a subject of study.