lilac (Syringa oblata); a deciduous shrub with fragrant purple flowers, often grown for ornament

flower of the lilac (Syringa), a deciduous shrub with fragrant white or purple flowers

The white-flowered variety of the common lilac tree; used as an ornamental plant.

lilac buds or a knot of lilac blossoms; often used as a literary metaphor for a heart heavy with grief or pent-up sorrow