系統 けいとう
keitō

Noun

1. system

システムのこの予測 よそくされなかった機能 きのう不全 ふぜん 適切 てきせつ配線 はいせん系統 けいとうによって こされた。
shisutemuno kono yosoku sarenakatta kinōfuzenwa futekisetsuna haisenkētōni yotte hikiokosareta.
This unexpected malfunctioning of the system was caused by improper wiring.
Noun

2. lineage; ancestry; family line

Noun

3. group (e.g. of colors) (colours); family (e.g. of languages); party; school (of thought)

Noun

4. close (evolutionary) relationship

Noun

5. a population sharing a common ancestor (in genetics); strain (e.g. bacterial)