息 means “breath, rest, son”

いき · iki

Also: respiration, interest (on money)

Kun'yomi (Japanese reading)
いき
On'yomi (Chinese reading)
ソク

JLPT N3 · Taught in grade 3 · 10 strokes

The story

自 began as a drawing of a nose; set over the heart (心), it shows air moving from nose to chest: breath. 息 is breath, ため息 a sigh, 休息 a pause to catch it, and, curiously, 息子 is a son.

Used in 息 (iki, breath), 息子 (musuko, son), and ため息 (tameiki, sigh)

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