1. thistle any of numerous plants of the family Compositae and especially of the genera Carduus and Cirsium and Onopordum having prickly-edged leaves
  2. thistledown pappus of a thistle consisting of silky featherlike hairs attached to the seed-like fruit of a thistle
  3. this evening during the night of the present day
  4. thistlelike resembling a thistle
  5. this night during the night of the present day

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