"blackening" in the noun sense
1. blackening, darkening
changing to a darker color
"blackening" in the verb sense
1. blacken, melanize, melanise, black
make or become black
"The smoke blackened the ceiling"
"The ceiling blackened"
2. char, blacken, sear, scorch
burn slightly and superficially so as to affect color
"The cook blackened the chicken breast"
"The fire charred the ceiling above the mantelpiece"
"the flames scorched the ceiling"
Source: WordNet® (An amazing lexical database of English)
Princeton University "About WordNet®."
WordNet®. Princeton University. 2010.
View WordNet® License