The meaning of BLACKEN is to become dark or black. How to use blacken in a sentence.

blacken verb [I or T usually passive] (SPOIL) blacken someone's name/image/reputation to make someone have a bad reputation:

BLACKEN definition: to make black; darken. See examples of blacken used in a sentence.

To blacken something means to make it black or very dark in colour. Something that blackens becomes black or very dark in colour. Plumes of smoke blackened the sky.

Definition of blacken verb in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

Factsheet What does the verb blacken mean? There are eight meanings listed in OED's entry for the verb blacken. See ‘Meaning & use’ for definitions, usage, and quotation evidence.

blacken (ˈblækən) vb 1. to make or become black or dirty 2. (tr) to defame; slander (esp in the phrase blacken someone's name)

Dec 14, 2025 · To defame or sully. (transitive) To cook (meat or fish) by coating with pepper, etc., and quickly searing in a hot pan. blacken.

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BLACKEN meaning: 1 : to make something dark or black or to become dark or black; 2 : to hurt the reputation of (someone or something)