soi
verb

to flash (light); to illuminate; to light; to give light to
to look at one's image in (a mirror)
to candle (e.g. an egg)
to see closely (under a microscope, magnifier, etc.); to examine

noun

alluvial island (in a river)

adj

(archaic) accomplished; experienced; well-versed in

sôi
adj

(of liquid) be boiling
(of liquid) be boiled