Communication

Consensus (group agreement and decision-making) Consensus Consensus is a process and outcome in which members of a group reach broad agreement on a decision. It contrasts with majority rule and appears in politics, organizations, science,…

Consonant (phonetics): definition, classification, and role in language Consonant A consonant is a speech sound produced with partial or complete airflow obstruction; this article explains articulation, classification, syllable behavior, examples, historical not…

Consonant mutation: grammatical alternation of initial consonants Consonant mutation Consonant mutation is a morphosyntactic process in which a consonant's phonetic form changes depending on grammatical context. Common in Celtic and some Bantu languages, it has his…

Constructed language (conlang): overview, types, history and uses Constructed language A constructed language (conlang) is a deliberately created language. This article explains forms, purposes, history, notable examples, and distinctions such as a priori/a posterior…

Constructed script (conscript, neography) Constructed script A constructed script is a writing system deliberately designed rather than evolved. Covers types, design principles, history, examples from fiction and real life, uses in conlangs,…

Contact (touch, communication, and related concepts) Contact Contact denotes touching or establishing communication. The term applies across physical, social, medical, legal and technical contexts; this article explains forms, history, commo…

Contact network A contact network is a graph representing who meets whom or what touches what; used to model disease spread, information flow, and interactions across social, biological, or engine…

Content delivery: methods, systems, and practical considerations Content delivery Content delivery covers how digital media—audio, video, software, games—and their metadata are distributed and delivered to end users over broadcasting systems, the Internet, CDNs,…

Content word: definition, types, function and contrasts with function words Content word Content words are lexical items (nouns, verbs, adjectives, adverbs) that carry semantic meaning. This article explains their characteristics, grammatical role, prosody, examples, a…

Context: meanings, types, and uses across language, computing, and culture Context An overview of 'context' covering linguistic, computational, archaeological, social, and cultural senses, plus related software and events. Explains key distinctions, examples, and…

Linguistic Context: How Situational, Cultural, and Co-text Shape Meaning Context (language) Linguistic context explained: how co-text, situational, cultural and nonverbal cues shape meaning, resolve ambiguity, and influence translation, law, NLP and everyday communication…

Contraction (linguistics): forms, usage, history, and distinctions Contraction A contraction is a shortened form of two or more words in which sounds or letters are omitted and often marked in writing by an apostrophe; used in speech, informal writing, and ma…

Controlled Natural Language Controlled language Controlled natural languages are restricted forms of a natural language designed to reduce ambiguity, improve clarity for readers and translators, and enable reliable automated pro…

Conversation: forms, functions, and social dynamics Conversation A conversation is spontaneous verbal exchange between people. This article explains its features, history, types, channels, social functions, skills, and how it differs from formal…

Coptic language (Coptic Egyptian) Coptic language Late stage of the Egyptian language written in a modified Greek script; important for Egyptian Christianity, literature, and the study of ancient Egyptian speech and grammar.

Copy editing: roles, methods, and distinctions Copy editing An overview of copy editing: its tasks, position in the publishing workflow, regional job titles, history and practical importance for clarity, accuracy and consistency.

Cornish dialect — regional variety of English spoken in Cornwall Cornish dialect Regional variety of English associated with Cornwall, influenced by the historical Cornish language. Covers features, history, vocabulary, cultural role, and how it differs from Co…

Cornish language (Kernewek): origins, features, and modern revival Cornish language Cornish (Kernewek) is a Brythonic Celtic language of Cornwall. This article explains its history, structure, decline, and contemporary revival, plus uses, orthographies and relatio…

Coronal consonant A coronal consonant is articulated with the front part of the tongue. Article explains articulation, common subtypes (dental, alveolar, retroflex), cross‑linguistic examples and ph…

Corsican language (Corsu): Romance language of Corsica Corsican language Corsican (Corsu) is an Italo-Dalmatian Romance language spoken on Corsica and nearby Sardinian areas. It has northern and southern dialects, links to Tuscan and Ligurian varieties,…

Cot–caught merger (lot–thought merger) Cot-caught merger A common vowel merger in English in which the vowels of 'cot' and 'caught' become indistinguishable. Found across much of North America and parts of the British Isles; affects pron…

Cree language: overview, dialects, writing systems, and contemporary use Cree language Algonquian language spoken across Canada by roughly 117,000 people. Covers dialect groups, writing systems, linguistic features, history, and current status including recognition i…

Creole language A creole is a full natural language that develops from a contact pidgin and becomes the native tongue of a community; it has distinct linguistic features, history, and sociolinguis…

Crisis hotline Crisis hotlines provide immediate emotional support and safety planning by phone or text for people facing suicidal thoughts, abuse, mental health crises, or other urgent distress.

Croatian language: overview, dialects, history and modern usage Croatian language An informative overview of the Croatian language, its major dialects, historical development, writing reforms, grammatical features, and contemporary use in the region and abroad.

Cross-cultural communication: concepts, history, barriers and strategies Cross-cultural communication Examination of cross-cultural communication: definition, history, common barriers, practical strategies, and how it relates to intercultural communication.

Cuban Spanish: features, history, regional variation and vocabulary Cuban Spanish Comprehensive overview of Cuban Spanish: origins, phonology, grammar, regional differences, loanwords from Canarian, African and Taíno sources, and its role in culture and literatu…

Cuneiform: ancient wedge-shaped writing of Mesopotamia Cuneiform Cuneiform is one of the earliest writing systems, developed in ancient Mesopotamia. It used wedge marks on clay tablets and was adapted for many languages before falling out of use…

Cunt A highly offensive English vulgarism for female genitalia and a potent insult; etymology is debated, historically attested, socially variable in force and subject to censorship and…

Curtsey (Curtsy): a traditional female greeting and gesture Curtsey A curtsey (also curtsy) is a traditional gesture of respect in which a woman or girl lowers her body. This article explains its form, history, uses, etiquette and cultural variatio…

Cybernetics: Control, Communication, and Systems Thinking Cybernetics Comprehensive overview of cybernetics: core ideas (feedback, control, information), historical origins, key figures, models and methods, applications across engineering, biology an…

Cipher (cryptography): methods, history, and uses Cypher An overview of ciphers: definitions, types, historical development, common examples, applications and how they differ from codes in modern cryptography.

Cyrillic script An overview of the Cyrillic writing system: origins, characteristics, historical development, modern variants and the languages and regions where it is used.

Czech language West Slavic language of about ten million speakers, official in the Czech Republic. Known for a rich case system, three genders, distinctive phonemes and high mutual intelligibilit…

Dalmatian language Extinct Romance language once spoken along the Dalmatian coast; documented chiefly through late 19th-century fieldwork that preserved its last dialectal traces and vocabulary.

Danish language (Dansk): overview, history, and main features Danish language A concise encyclopedia entry on the Danish language: its classification, where it is spoken, key phonological and orthographic features, historical development, dialects and common…

Day of Infamy speech (Franklin D. Roosevelt, December 8, 1941) Day of Infamy speech Franklin D. Roosevelt's December 8, 1941 address to Congress after the attack on Pearl Harbor, declaring the event 'a date which will live in infamy' and securing a declaration of…

De (Cyrillic letter — Д, д) De (Cyrillic) De (Д, д) is the fifth letter of the Cyrillic alphabet representing a voiced dental/alveolar stop. It derives from Greek delta and corresponds to Latin D; forms vary between print,…

Deafness (Hearing Loss): Causes, Types, Communication, and Cultural Aspects Deafness Overview of deafness: what it is, how it is described and measured, common causes, communication methods and technologies, social and cultural considerations, and notable historica…

Dehwari language: a Southwestern Iranian speech of Balochistan Dehwari language Dehwari is a Southwestern Iranian language spoken in parts of Balochistan, Pakistan. It is closely related to Persian and shows strong local influences from Balochi and Brahui.

Deseret alphabet A 19th-century phonetic alphabet created by leaders of the Church of Jesus Christ of Latter-day Saints to simplify English spelling and literacy for settlers and immigrants.

Desert Island Discs — BBC radio interview programme Desert Island Discs Long-running BBC Radio series in which guests choose eight records, a book and a luxury item while discussing their lives; created in 1942 and noted for its signature theme and cul…

Devanagari: script, structure, history and modern use Devanagari Devanagari is a Brahmic abugida used across South Asia to write Sanskrit, Hindi, Marathi, Nepali and many regional languages. It features a headline, vowel diacritics, conjunct con…

Dhatki (Dhati, Thari): a Rajasthani sociolect Dhatki language Dhatki (also Dhati or Thari) is a variety of Marwari Rajasthani spoken in parts of Rajasthan, India and Sindh, Pakistan, notable for glottalized and implosive sounds and cross-bord…

Diacritic: marks that modify letters and pronunciation Diacritic A diacritic is a mark added to a letter to change its pronunciation, tone, length, or meaning. This article explains forms, history, uses in languages, typographic issues, and how…

Dialect (linguistics) Dialect A dialect is a variety of a language used by a specific community. This article explains features, origins, social roles, classification issues, and the political distinctions betw…

Dialect Continuum: Gradual Variation and Mutual Intelligibility Across Regions Dialect continuum A dialect continuum is a range of related regional varieties in which neighboring forms are mutually intelligible but distant varieties may not be; shaped by geography, history, an…

Dialog system (conversational agent) Dialog system Software that carries on structured interaction with humans using text, speech or other signals; covers architecture, history, applications, and design trade-offs.