Constructed languages introduced in the 2000s

minimalist language created by Sonja Lang

Interslavic ( / ) is a pan-Slavic auxiliary language. Its purpose is to facilitate communication between speakers of various Slavic languages, as well as to allow people who do not speak a Slavic language to communicate with Slavic speakers by being mutually intelligible with most, if not all, Slavic languages. For Slavs and non-Slavs, it can be used for educational purposes as well. Its use spans a broad range of fields, including tourism and education.

Lydnevi is a fictional North Slavic language created in 2002 by the Czech linguist Libor Sztemon.

constructed science-fiction language

Ithkuil is an experimental constructed language created by John Quijada. It is designed to express more profound levels of human cognition briefly yet overtly and clearly, particularly about human categorization. It is a cross between an a priori philosophical and a logical language. It tries to minimize the vagueness and semantic ambiguity in natural human languages. Ithkuil is notable for its grammatical complexity and extensive phoneme inventory, the latter being simplified in an upcoming redesign. The name "Ithkuil" is an anglicized form of Iţkuîl, which in the original form roughly meant

fictional language in "Game of Thrones"

naturalistic constructed language

subset of standard English grammar and a list of 1500 English words

Sambahsa () or Sambahsa-Mundialect is an international auxiliary language (IAL) and worldlang devised by French linguist Olivier Simon. It is based on the Proto-Indo-European language (PIE) and has a complex grammar. The language was first released on the Internet in July 2007; prior to that, the creator claims to have worked on it for eight years. According to a study addressing recent auxiliary languages, "Sambahsa has an extensive vocabulary and a large amount of learning and reference material".

Loxian is a fictional artistic language and alphabet created by Irish poet and lyricist Roma Ryan. A longtime recording and business partner of Irish singer and composer Enya, Ryan created the language during the production of the latter's sixth studio album, Amarantine (2005). Enya has sung the Loxian phonetics in some of her songs since the language was developed.

set of phrases in English for use at sea