系

lineage, system

Readings

On'yomi (音読み)

ケイ

Kun'yomi (訓読み)

N/A

Stroke Order

7 / 7

Information

Grade:6

Strokes:7

JLPT:N1

Frequency:567

Vocabulary

ケイ

Word	Reading	Meaning
家系	カケイ	family lineage
系統	ケイトウ	system; lineage; ancestry; family line; group (e.g. of colors) (colours); family (e.g. of languages); party; school (of thought); close (evolutionary) relationship; a population sharing a common ancestor (in genetics); strain (e.g. bacterial)
系譜	ケイフ	genealogy; lineage; family tree; pedigree
系列	ケイレツ	series; sequence; system; succession; keiretsu (group); conglomeration of businesses linked by cross-shareholdings; affiliated; subsidiary
生態系	セイタイケイ	ecosystem

Other

Word	Reading	Meaning
系	けい	system; lineage; group; corollary; system (range of strata that correspond to a particular time period); (taxonomical) series
直系	ちょっけい	direct descent; direct line
日系	にっけい	(of) Japanese descent; non-Japanese of Japanese descent; nikkeijin; company, etc. set up with Japanese capital; company managed by Japanese or non-Japanese of Japanese descent
銀河系	ぎんがけい	Milky Way galaxy; Milky Way; the Galaxy; galactic system; galaxy
一系	いっけい	single-family lineage

Visually Similar Kanji

These kanji are easily confused due to similar shapes

person in charge, connection, duty, concern oneself

grandchild, descendants

elementary, principle, naked, uncovered

cord, rope, searching, inquiring

infancy, childhood

chronicle, account, narrative, history, annals, geologic period

class, rank, grade