This is the 1136th most frequent Russian word.
вячеслав
"Вячеслав" is a Russian male given name meaning "greater glory" or "more glorious."
Common usage as a personal name.
Вячеслав идёт в парк.
Vyacheslav is going to the park.
Proper noun, addressing a person by name.
Я вчера встретил Вячеслава в магазине.
I met Vyacheslav at the store yesterday.
Referring to Vyacheslav in a question context.