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S vs Trapdoor - What's the difference?

s | trapdoor |

As a letter s

is the letter s with a.

As a noun trapdoor is

a hinged or sliding door set into a floor or ceiling.

s

Translingual

{{Basic Latin character info, previous=r, next=t, image= (wikipedia s)

Letter

  • The nineteenth letter of the .

    • Symbol

    (wikipedia) (mul-symbol)
  • voiceless alveolar fricative
  • Symbol for second , an SI unit of measurement of time.

    • See also

    (Latn-script) * * (esh) * (dze) * {{Letter , page=S , NATO=Sierra , Morse=ยทยทยท , Character=S , Braille=? }} Image:Latin S.png, Capital and lowercase versions of S , in normal and italic type Image:Fraktur letter S.png, Uppercase and lowercase S in Fraktur Symbols for SI units ----

    trapdoor

    English

    (wikipedia trapdoor)

    Alternative forms

    * trap door * trap-door

    Noun

    (en noun)
  • A hinged or sliding door set into a floor or ceiling.
  • (theater) Such a trap set into the floor of a stage to allow fast exits and entrances.
  • (computing) A secret method of obtaining access to a program or online system; a backdoor.
  • (mathematics, cryptography) The special information that permits the inverse of a trapdoor function to be easily computed.
  • (mining) A door in a level for regulating the ventilating current; weather door.
    • (Raymond)

    Synonyms

    * drop

    Derived terms

    * trapdoor spider