What does 系統 mean?
系統 is a Japanese noun meaning “system, genealogy” in English. It can also be translated as “lineage, group (e.g. of colors) (colours), close (evolutionary) relationship” depending on context. It is written as 系統 in kanji, けいとう in hiragana, and keitou in romaji. This word is part of JLPT N2 vocabulary.
Example sentence
システムのこの予測されなかった機能不全は不適切な配線系統によって引き起こされた。
This unexpected malfunctioning of the system was caused by improper wiring.