Bilingually refers to proficiency in two languages. There are several synonyms for this term that can be used interchangeably in various contexts such as bilingualism, bilingual proficiency, bilingual ability, dual-language proficiency, dual-language ability, and two-language fluency. These synonyms differ in nuance and can be used to describe a person's level of proficiency or their ability to use two languages interchangeably. Bilingually is a useful term to describe someone who can communicate in different languages and is becoming increasingly relevant in today's globalized world. Being able to speak multiple languages fluently is considered a valuable skill, especially in industries such as international business, education, and communication.