The word "sach" is a colloquial term used in Hindi that translates to "truth" in English. However, the English language provides a plethora of synonyms for the word "truth" that can be used interchangeably in different contexts. Some of these synonyms include authenticity, veracity, honesty, factuality, genuineness, sincerity, accuracy, and exactness. Depending on the subject matter and context, these synonyms can be effectively used to convey the same meaning as the word "sach". Each of these synonyms adds a unique nuance to the definition of "truth". Therefore, choosing the right synonym is crucial in making sure that your message is conveyed accurately.