Definitions from Wiktionary ( )

▸ noun:  (botany) A sharp protective spine of a plant.
▸ noun:  Any shrub or small tree that bears thorns, especially a hawthorn.
▸ noun:  (figurative) That which pricks or annoys; anything troublesome.
▸ noun:  A letter of Latin script (capital: Þ, small: þ), borrowed from the futhark; today used only in Icelandic to represent the voiceless dental fricative, but originally used in several early Germanic scripts, including Old English where it represented the dental fricatives that are today written th (Old English did not have phonemic voicing distinctions for fricatives).
▸ verb:  To pierce with, or as if with, a thorn (sharp pointed object).
▸ noun:  A topographic surname from Middle English for someone living near a thorn bush.
▸ noun:  A place name:
▸ noun:  A hamlet in Houghton Regis parish, Central Bedfordshire, Bedfordshire, England (OS grid ref TL0024).
▸ noun:  A village in Maasgouw municipality, Limburg province, Netherlands.
▸ noun:  An unincorporated community in Chickasaw County, Mississippi, United States.
▸ noun:  Former name of Whitethorn, Humboldt County, California.

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