What Azure product can you use to enrich an index with different language translations?

The best choice for enriching an index with different language translations is Azure Cognitive Search. This service is specifically designed for building search applications and can integrate various cognitive skills, including language translation capabilities, to enhance the search experience.

Azure Cognitive Search includes built-in capabilities for text analysis, language detection, and can utilize cognitive skills such as translation to enrich documents before they are indexed. This allows users to perform searches across information in different languages efficiently, making the content accessible to a broader audience.

While Azure Cognitive Services offers a range of computer vision, speech, language, and decision-making APIs, it is often used for specific AI functionalities rather than as a dedicated solution for indexing enriched multi-language data. Azure Speech Service primarily focuses on speech recognition and text-to-speech capabilities and would not be directly involved in index enrichment with language translation. Azure Bot Service is geared towards developing chatbots and conversational applications, which do not pertain to enriching search indexes with translations. Therefore, the correct answer is Azure Cognitive Search, as it directly addresses the need to enhance an index with language translation capabilities.