1. Lexicography

Lexicology is the branch of linguistics that analyzes the lexicon of a specific language. A word is the smallest meaningful unit of a language that can stand on its own, and is made up of small components called morphemes and even smaller elements known as phonemes, or distinguishing sounds. Lexicology examines every feature of a word – including formation, spelling, origin, usage, and definition

36.Syntax	The word syntax comes from Ancient Greek: σύνταξις "coordination", which consists of σύν syn, "together", and τάξις táxis, "an ordering".	In linguistics, syntax (/ˈsɪntæks/)^[1][2] is the study of how words and morphemes combine to form larger units such as phrases and sentences.
37.Jargon	The French word is believed to have been derived from the Latin word gaggire, meaning "to chatter", which was used to describe speech that the listener did not understand.^[14] The word may also come from Old French jargon meaning "chatter of birds".^[14] Middle English also has the verb jargounen meaning "to chatter," or "twittering," deriving from Old French.	Jargon is the specialized terminology associated with a particular field or area of activity
38.Diglossia	The Greek word διγλωσσία (diglōssia) meant bilingualism; it was given its specialized meaning "two forms of the same language" by Emmanuel Rhoides in the prologue of his Parerga in 1885. The term was quickly adapted into French as diglossie by the Greek linguist and demoticist Ioannis Psycharis, with credit to Rhoides.	In linguistics, diglossia (/daɪˈɡlɒsiə, daɪˈɡlɔːsiə/) is a situation in which two dialects or languages are used (in fairly strict compartmentalization) by a single language community
39.Marker	Most characteristically, markers occur as clitics or inflectional affixes. In analytic languages and agglutinative languages, markers are generally easily distinguished.	In linguistics, a marker is a free or bound morpheme that indicates the grammatical function of the marked word, phrase, or sentence.
40.Phonology	Early evidence for a systematic study of the sounds in a language appears in the 4th century BCE Ashtadhyayi, a Sanskrit grammar composed by Pāṇini.	Phonology is a branch of linguistics that studies how languages or dialects systematically organize their sounds (or constituent parts of signs, in sign languages).
41.Discourse analysis	The ancient Greeks (among others) had much to say on discourse; however, there is ongoing discussion about whether Austria-born Leo Spitzer's Stilstudien (Style Studies) of 1928 is the earliest example of discourse analysis (DA)