"bitters" in the noun sense
1. bitter
English term for a dry sharp-tasting ale with strong flavor of hops (usually on draft)
2. bitter, bitterness
the taste experience when quinine or coffee is taken into the mouth
3. bitterness, bitter
the property of having a harsh unpleasant taste
"bitters" in the verb sense
1. bitter
make bitter
Source: WordNet® (An amazing lexical database of English)
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