English

Proper noun

Tombstone

1. A city in the south-east of Arizona.

English

Noun

A tombstone in Camp Butler National Cemetery

tombstone ‎(plural tombstones)

1. A headstone marking the person's grave.
   • 1922, Virginia Woolf, Jacob's Room Chapter 2

     True, there's no harm in crying for one's husband, and the tombstone, though plain, was a solid piece of work, and on summer's days when the widow brought her boys to stand there one felt kindly towards her.

2. (mathematics) The symbol "∎" marking the end of a proof.

Synonyms

• headstone, gravestone
• (mathematics) halmos

Translations

See also

• through-stone

Verb

tombstone ‎(third-person singular simple present tombstones, present participle tombstoning, simple past and past participle tombstoned)

1. (surfing) For a surfboard to stand upright half-submerged in the water (like a tombstone, above) because the surfer is underwater with his or her legrope pulled tight. Often this indicates a surfer in difficulty, either held down by the power of a wave or unconscious and unable to get to the surface.
   • 2005, Bruce Jenkins, Surfer magazine, (referring to Kelly Slater) :

     Before the contest even started, Slater went down hard in a warmup session. He took a two-wave hold-down in the semifinals, his board tombstoning eerily for all to see, […]