First languages are the mother tongue or primary language that a person learns from birth. Synonyms for first languages can include native language, mother tongue, father tongue, primary language, home language, and ancestral language. These terms all refer to the language that a person has grown up speaking and one that is often passed down through generations of their family. It is an essential part of a person's cultural identity and connects them to their roots. Learning a second language can be useful for communication and understanding other cultures, but the first language will always be an integral part of a person's identity.