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  2. Primary source - Wikipedia

    en.wikipedia.org/wiki/Primary_source

    The definition of a primary source varies depending upon the academic discipline and the context in which it is used. In the humanities , a primary source could be defined as something that was created either during the time period being studied or afterward by individuals reflecting on their involvement in the events of that time.

  3. Means of communication - Wikipedia

    en.wikipedia.org/wiki/Means_of_communication

    A means of communication is therefore a means to an end to make communication between people easier, more understandable and, above all, clearer. In everyday language, the term means of communication is often equated with the medium. However, the term "medium" is used in media studies to refer to a large number of concepts, some of which do not ...

  4. Primary election - Wikipedia

    en.wikipedia.org/wiki/Primary_election

    t. e. Party primaries or primary elections are elections in which a political party selects a candidate for an upcoming general election. Depending on the country and administrative division, there may be an "open primary", in which all voters are eligible to participate, or a "closed primary", in which only members of supporters of a political ...

  5. Primary key - Wikipedia

    en.wikipedia.org/wiki/Primary_key

    Primary key. In the relational model of databases, a primary key is a specific choice of a minimal set of attributes ( columns) that uniquely specify a tuple ( row) in a relation ( table ). [a] [1] Informally, a primary key is "which attributes identify a record," and in simple cases constitute a single attribute: a unique ID.

  6. Educational stage - Wikipedia

    en.wikipedia.org/wiki/Educational_stage

    Educational stages are subdivisions of formal learning, typically covering early childhood education, primary education, secondary education and tertiary education.The United Nations Educational, Scientific and Cultural Organization recognizes nine levels of education in its International Standard Classification of Education (ISCED) system (from Level 0 (pre-primary education) through Level 8 ...

  7. List of medical roots, suffixes and prefixes - Wikipedia

    en.wikipedia.org/wiki/List_of_medical_roots...

    Meaning Origin language and etymology Example(s) a-, an-not, without (alpha privative) Greek ἀ-/ἀν-(a-/an-), not, without analgesic, apathy, anencephaly: ab-from; away from Latin abduction, abdomen: abdomin-of or relating to the abdomen: Latin abdōmen, abdomen, fat around the belly abdomen, abdominal -ac: pertaining to; one afflicted with

  8. Connotation - Wikipedia

    en.wikipedia.org/wiki/Connotation

    Connotation. A connotation is a commonly understood cultural or emotional association that any given word or phrase carries, in addition to its explicit or literal meaning, which is its denotation . A connotation is frequently described as either positive or negative, with regard to its pleasing or displeasing emotional connection. [1]

  9. First language - Wikipedia

    en.wikipedia.org/wiki/First_language

    A first language ( L1 ), native language, native tongue, or mother tongue is the first language a person has been exposed to from birth [1] or within the critical period. In some countries, the term native language or mother tongue refers to the language of one's ethnic group rather than the individual's actual first language.