Definition of "lilac" in English

noun

1. A large shrub of the genus Syringa, especially Syringa vulgaris, bearing white, pale-pink, or purple flowers.

2. A flower of the lilac shrub.

3. A pale purple color, the color of some lilac flowers.

4. A cat having a lilac-colored (pale brown) coat.

adjective

1. Having a pale purple colour.

2. Of a cat or its fur: having a pale brown colour, lighter than chocolate.