Question: The German word Kreis and the Thai word Monthon both translate to what?

Context paragraphs:
Thaksin Express: The Thaksin Express (Thai: รถด่วนพิเศษทักษิณ ) is an express train run by the State Railway of Thailand (SRT) between Bangkok and Su-ngai Kolok, a border town in Narathiwat Province and the end of the southern rail line.  "Thaksin" is a Thai word for "south" (from the Sanskrit word "dakshin"), thus this train is referred to as "the Southern Express."  This train's passenger cars include 1st- and 2nd-class air conditioned sleepers, 2nd-class fan sleepers, 2nd-class fan seating coaches, 3rd class air conditioned and fan seating coaches, and a dining car.

Monthon: Monthon (Thai: มณฑล ) were administrative subdivisions of Thailand at the beginning of the 20th century.  The Thai word "monthon" is a translation of the word "mandala" ("maṇḍala ", literally "circle"), in its sense of a type of political formation.  The monthon were created as a part of the "thesaphiban" (เทศาภิบาล , literally "local government") bureaucratic administrative system, introduced by Prince Damrong Rajanubhab which, together with the monthon, established step-by-step today's present provinces ("changwat"), districts ("amphoe"), and communes ("tambon") throughout Thailand.  Each monthon was led by a royal commissioner called "thesaphiban" (เทศาภิบาล), later renamed to "samuhathesaphiban" (สมุหเทศาภิบาล).  The system was officially adopted by the 1897 Local Administration Act, after some monthon had been established and administrative details were sorted out.

Jerwen County: Jerwen County (German: "Kreis Jerwen" , German: "Kreis Weissenstein" , Estonian: "Järva kreis" , Estonian: "Paide kreis" , Russian: Йервенский уезд , Russian: Вейсенштейнский уезд ) was one of the four counties of the Russian Empire located in the Governorate of Estonia.  It was situated in the central part of the governorate (in present-day northern Estonia).  Its capital was Paide ("Weissenstein").  The territory of Kreis Jerwen corresponds to most of the present-day Järva County and small parts of Lääne-Viru and Rapla counties.

Kreis: Kreis (pronounced ] ; plural "Kreise" [ˈkʁaɪzə] ) is the German word for circle, and also refers to a type of country subdivision.

Nok Air: Nok Air (, Thai: นกแอร์ , derived from "nok" (นก), the Thai word for "bird") is a low-cost airline in Thailand operating mostly domestic services out of Bangkok's Don Mueang International Airport.  Thai Airways owns the largest stake in the airline.

Farang: Farang (Thai: ฝรั่ง  ] , colloquially ] ) is a generic Thai word for someone of European ancestry, no matter where they may come from.  The "Royal Institute Dictionary 1999", the official dictionary of Thai words, defines the word as "a person of white race".

Siamese buffalo: The Krabue buffalo (กระบือ ("krabue") being the Thai word for "water buffalo") also known as the Siamese buffalo, Thai water buffalo or Thai swamp buffalo is a large breed of water buffalo indigenous to Thailand.

Circle (country subdivision): Circle is a type of administrative division of some countries.  In Thailand the former "monthon" are translated as circle.  The former Holy Roman Empire was organized into Imperial Circles (German: Reichskreise).  Algerian daïras are circles.

Thai grammar: Thai is an analytic (or isolating) language, like many languages in Southeast Asia.  Also like other languages in the region, Thai syntax conforms to subject–verb–object word order, is head-initial (displaying modified-modifier ordering), and has a noun classifier system.  Basic Thai word order is also regular with every sentence structured by an "SVO (subject–verb–object)" order like English.

Luang Por: Luang por (Thai: หลวงพ่อ ; rtgs: "luang pho" ,  ] ) means "venerable father" and is used as a title for respected senior Buddhist monastics. "Luang" is a Thai word meaning "royal" or "venerable".  It is used in both family context and to express respect for monastics.  "Por" is the Thai word for "father".  It is used in both family context and in venerations.  For instance, "Luang Por Ajahn Chah was a well-known and widely respected monk."  In his middle and older years as respect for him grew, people sometimes referred to him simply as "Luang Por".  It is more common to see the word spelled 'Luang Phor' these days.

Supporting paragraphs: Kreis Circle (country subdivision)
Answer: circle