a stiff, sharp-pointed woody projection on the stem or other part of a plant

a thorny bush, shrub, or tree, especially a hawthorn

an Old English and Icelandic runic letter, þ or Þ, representing the dental fricatives ð and θ. In English it was eventually superseded by the digraph th

a yellowish-brown woodland moth that rests with the wings raised over the back, with caterpillars that mimic twigs in appearance