To help our clients make informed decisions, Translators USA has decided to compile a glossary of common interpreting terms (listed by alphabetical order):

Active language. It refers to the language which the interpreter understands and speaks perfectly. It is sometimes also referred to as A language.

Ad hoc interpreting. It describes interpreting by an untrained bilingual or multilingual individual, usually a family member, colleague or employee but it can also be a complete stranger who happens to be on the right place at the right time.