Khalka is a Mongolian word that typically refers to a group of people or society. In Mongolian, there are several words that are synonymous with khalka, including urtuu, bogin, jardam, hün, and alban. Urtuu refers specifically to a community or locality, while bogin is a more general term for any group of people. Jardam can be used to describe a group of people who work together towards a common goal. The word hün is used to refer to a tribe or ethnic group, while alban refers to a society or community. All of these words are valuable alternatives to khalka and can help to convey a specific meaning or nuance when discussing groups of people in Mongolian.