=1

黑

Hēi

abbr. for Heilongjiang province 黑龙江 Hēilóngjiāng

=1

黑

hēi

black dark sinister secret shady illegal to hide (sth) away to vilify (loanword) to hack (computing)

=2

油

yóu

oil fat grease petroleum to apply tung oil, paint or varnish oily greasy glib cunning

=2

油

yòu

(obsolete on its own in Standard Chinese) alternative form of 釉 (yòu, “to glaze”) alternative form of 釉 (yòu, “to glaze”) used in 浩油