既 means “already, previously”

すでに · sudeni

Also: long ago

Kun'yomi (Japanese reading)
すでに
On'yomi (Chinese reading)
キ

JLPT N1 · Taught in secondary school · 10 strokes

The story

A bowl heaped with food (the left side) and a diner turning his head away (旡): the meal is over, already done. 既に is already, 既婚 is married, and on LINE the little 既読 mark tells you your message has been read.

Used in 既に (sude ni, already), 既婚 (kikon, married), and 既読 (kidoku, read, of a message)

More from Moments & Eras

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Readings from KANJIDIC2, © EDRDG, CC BY-SA.