注す

さす

to pour; to add (liquid); to serve (drinks); to put on (lipstick, etc.)

JLPT N2 common word Also written 点す

Meaning

v5svt
to pour; to add (liquid); to serve (drinks)
v5svt
to put on (lipstick, etc.); to apply; to colour; to dye

Example sentences

車輪には油を注したばかりだ。

I've just oiled the wheels.