Topic: PLANTS
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| Language: | Old English |
| Origin: |
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thorn
1 [countable]HBP a sharp point that grows on the stem of a plant such as a rose
2 [uncountable and countable]HBP a bush or tree that has thorns : a long, low hedge of thorns
a long, low hedge of thorns3 someone or something that annoys you or causes problems for a long period of time : He's been a thorn in the side of the party leadership for years.
a thorn in somebody's side
He's been a thorn in the side of the party leadership for years.