Machine translation is a subfield of computational linguistics that focuses on developing algorithms and software to automatically translate text or speech from one language to another. The goal of machine translation is to produce accurate and fluent translations that capture the meaning and nuances of the original text. Researchers in this field work on improving translation quality, handling specific linguistic challenges, and developing tools for translating to and from multiple languages. Machine translation is used in a variety of applications, such as language localization for software, automatic translation of news articles, and assisting human translators in their work.