lilac lilac /ˈlaɪˌlæk/

adjective

1. () Of a pale purple color  ( lilac-colored [American] , lilac-coloured [Canadian, British] , lilac , lavender )
   of a pale purple color
   

noun

1. () Any of various plants of the genus Syringa having large panicles of usually fragrant flowers  ( lilac )
   any of various plants of the genus Syringa having large panicles of usually fragrant flowers
     The scent of lilac filled the garden, signaling the arrival of spring.
   The scent of lilac filled the garden, signaling the arrival of spring.