This is the 7131st most frequent Russian word.
брауном
"Брауном" is the instrumental case of "Браун" (Brown, a surname or name) in Russian, meaning "with Brown" or "by Brown."
Here, 'брауном' refers to a specific item or device (potentially from the brand Braun), used instrumentally.
Мы экспериментировали с новым брауном в лаборатории.
We experimented with the new Braun in the laboratory.
In this sentence, 'брауном' could be referring instrumentally to the technology associated with Braun as an entity.
Техника Брауном демонстрирует простоту и надежность.
The Braun technology demonstrates simplicity and reliability.
In this context, 'брауном' refers to an instrumental usage, specifying an item he brought.