The language that a person is most familiar with, usually the language spoken in the country in which the person lives. It is not always the same language as a person's mother tongue. It is considered by some to be as valid as the mother tongue as a measure of a translator's or interpreter's ability to translate into that language.

Interpreting between two languages, in conversations, between two or more people. Used, for example in business meetings, for phone calls, during site visits and social events. The term is sometimes used loosely to include consecutive interpreting.

An official state-issued stamp or attachment to any public or private document that makes the document legal for use in any country that has signed the Hague Convention on Documents. In the UK apostilles are issued by the Foreign and Commonwealth Office.

Any material in the form of text incorporating illustrations, drawings, design elements, coloured panels, etc, produced by a designer for reproduction in a leaflet, booklet, magazine or other printed medium. When a translation is to be presented in the same format as the original artwork, this will involve a typesetting process in addition to trans [..]

Information relating to the source text that helps the translator perform the translation with more accuracy and in context using the correct style and tone. It will provide extra facts about the subject matter, the context, the audience and terminoloy. Examples include previously translated documents, glossaries with terminology, definitions, etc.

Translation back from the target language into the source language by a second translator. For example, if a document has been translated from English into French, the back translation would go from the translated French back into English to allow a speaker of English to check that no meaning has been lost in the translation process. However, a bac [..]

If used accurately, "bilingual" is a term is reserved for those speakers with native speaker proficiency in two languages and not merely those who speak two languages.

See "Computer Assisted Translation"

A certified translation is where a translation agency or freelance translator carry out a piece of translation work then certify to the fact that they carried out the work and that it is a true and accurate translation, in the form of an accompanying certificate or signature. Certified translations are usually necessary for official documents.

Cyan Magenta Yellow Black: the colour space used for commercial printing and most colour computer printers.