1. "हिंदी में" (Hindi mein): This is the most common and general way to say "in Hindi." It literally means "in Hindi" and is used for phrases like "This book is in Hindi" (यह किताब हिंदी में है).
2. "हिंदी भाषा में" (Hindi bhasha mein): This is a more formal way to say "in the Hindi language." It is used when you want to emphasize the language itself.
3. "हिंदी के माध्यम से" (Hindi ke madhyam se): This means "through the medium of Hindi" and is used when you want to express something is done using the Hindi language.
4. "हिंदी में कहा गया" (Hindi mein kaha gaya): This means "said in Hindi" and is used to indicate that something was spoken or written in Hindi.
The best way to translate "in Hindi" depends on the specific context and what you are trying to convey.