Transliteration is a type of conversion of a text from one script to another that involves swapping letters (thus trans- + liter-) in predictable ways, such as Greek → , Cyrillic → , Greek → the digraph , Armenian → or Latin → . For instance, for the Modern Greek term "", which is usually translated as "Hellenic Republic", the usual transliteration to Latin script is , and the name for Russia in Cyrillic script, "", is usually transliterated as . Transliteration is not primarily concerned with representing the sounds of the original but rather with representing the characters, ideally accurately and unambiguously. Thus, in the Greek above example, is transliterated though it is pronounced , is transliterated though pronounced , and is transliterated , though it is pronounced (exactly like ) and is not long. Transcription, conversely, seeks to capture sound rather than spelling; "" corresponds to in the International Phonetic Alphabet. While differentiation is lost in the case of , note how the letter shape becomes either or depending on the vowel that follows it. Angle brackets may be used to set off transliteration, as opposed to slashes for phonemic transcription and square brackets for phonetic transcription. Angle brackets may also be used to set off characters in the original script. Conventions and author preferences vary. Definitions Systematic transliteration is a mapping from one system of writing into another, typically grapheme to grapheme. Most transliteration systems are one-to-one, so a reader who knows the system can reconstruct the original spelling. Transliteration is opposed to transcription, which maps the sounds of one language into a writing system. Still, most systems of transliteration map the letters of the source script to letters pronounced similarly in the target script, for some specific pair of source and target language. Transliteration may be very close to transcription if the relations between letters and sounds are similar in both languages. In practice, there are some mixed transliteration/transcription systems that transliterate a part of the original script and transcribe the rest. For many script pairs, there are one or more standard transliteration systems. However, unsystematic transliteration is common. Difference from transcription In Modern Greek, the letters ⟨η⟩ ⟨ι⟩ ⟨υ⟩ and the letter combinations ⟨ει⟩ ⟨oι⟩ ⟨υι⟩ are pronounced (except when pronounced as semivowels), and a modern transcription renders them all as ⟨i⟩; but a transliteration distinguishes them, for example by transliterating to ⟨ē⟩ ⟨i⟩ ⟨y⟩