What does "blacken" mean?
To cause to be or become black.
verb ·Common ·High school level
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"Iron and coal were the magnets that drew railways to this land of lovely valleys and silent mountains—for such it was a century-and-a-half ago, before man blackened the valleys with the smoke of his forges, scarred the green hills with his shafts and waste-heaps, and drove the salmon from the quiet Rhondda and the murmuring Taff."
"The sky blackened as the storm clouds rolled in."
"Hundreds of years ago, married Japanese women would blacken their teeth to beautify themselves."
To cause to be or become black.
Common synonyms include: black, char, sear, abuse, asperse, attaint.
Hundreds of years ago, married Japanese women would blacken their teeth to beautify themselves.
Pronounced /ˈblækən/.
From Middle English blaknen, blakkenen, equivalent to black + -en (verbal suffix).