thorn

Từ điển Oxford Advanced Learner 8th

thorn [thorn thorns] BrE [θɔːn] NAmE [θɔːrn] noun
1. a small sharp pointed part on the ↑stem of some plants, such as ↑roses
2. a tree or bush that has thorns
see also ↑blackthorn, ↑hawthorn
3. (phonetics)the letter that was used in Old English and Icelandic to represent the sounds /[θ] / and /[ð] / and later written as th
Idiom: ↑thorn in somebody's side

Word Origin:
Old English, of Germanic origin; related to Dutch doorn and German Dorn.

• Từ đồng nghĩa / Synonyms:
  spine, prickle, pricker, sticker, spikelet, irritant