System - Kei

Japanese: 系 - ケイ

1. Something that has a certain relationship and forms a connection or unity. system "Forming
A word that is attached to two nouns to show that they are in a cohesive relationship. system "Foreign capital system "The Sun system " "Galaxy system " "MKS Units system "
3. (Some railway companies use "kata" or "gata"): A symbol indicating that the train is mass-produced from a single design. It is displayed as "Shinkansen N700 series."
4. In mathematics, a proposition that can be easily derived from a single theorem.
5. A division of strata based on geological time. It corresponds to the "ki" of the geological time division, and is a subdivision of the "kingdom" of the geological time division. For example, the Mesozoic strata are classified as the Middle World, and the Late Cretaceous strata as the Upper Cretaceous .
6. In biology, a word that indicates an organ related to a certain function. system Disease of
[Additional information] In slang, the word 2 has been expanded to mean "the way gals talk," "visual kei bands," "the typical sporty youth," Healing no It is used in expressions such as "shi-kei" (type of Japanese).

Kei [Kei] [Kanji item]

[Sound] Kei (Chinese)
[Kanji to study] 6th grade
1. Something that is connected like a thread. A relationship that is connected one after the other. "Family tree, lineage, genealogy, lineage / family lineage, mountain lineage, river lineage, direct lineage, same lineage, maternal lineage, collateral lineage"
2. An organized whole. "System"
[Name] Thread, Next, Hard, Year

Source: About Shogakukan Digital Daijisen Information | Legend

Japanese:

１ある関係をもって、一つのつながりやまとまりをなすもの。系統。「一つの系を形成する」
２名詞に付いて、一つのまとまりのある関係にあることを表す語。「理科系に進む」「外資系の企業」「太陽系」「銀河系」「MKS単位系」
３《鉄道会社によっては「型」または「形」を使う》一つの設計で量産された鉄道車両であることを示す記号。「新幹線N700系」のように表示する。
４数学で、一つの定理から容易に導かれる命題。
５地質年代に基づく地層区分。地質年代区分の「紀」に対応し、地層区分「界」の下位区分。例えば、中生代の地層は中世界、後期白亜紀の地層は上部白亜系と区分される。
６生物学で、ある機能に関する器官であることを表す語。「泌尿器系の病気」
[補説]俗語では2を発展させて、「ギャル系の話し方」「ビジュアル系バンド」「いかにも体育会系の若者」「癒いやし系」などと用いる。