- [noun] poisonous perennial Old World vine having violet flowers and oval coral-red berries; widespread weed in North America
Synonyms: nightshade, climbing nightshade, deadly nightshade, poisonous nightshade, woody nightshade, Solanum dulcamara
- [noun] twining shrub of North America having three-valved yellow capsules enclosing scarlet seeds
Synonyms: American climbing false staff vine, waxwork, Celastrus scandens
- [adjective] tinged with sadness; "a movie with a bittersweet ending"
- [adjective] having a taste that is a mixture of bitterness and sweetness