Noun limelight has 2 senses
  1. limelight, spotlight, glare, public eye - a focus of public attention; "he enjoyed being in the limelight"; "when Congress investigates it brings the full glare of publicity to the agency"
    --1 is a kind of prominence
  2. limelight, calcium light - a lamp consisting of a flame directed at a cylinder of lime with a lens to concentrate the light; formerly used for stage lighting
    --2 is a kind of lamp
    --2 is a member of theater light