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S vs Mainline - What's the difference?

s | mainline |

As a letter s

is the letter s with a.

As an adjective mainline is

normal, principal or standard.

As a verb mainline is

to inject (a drug) directly into a vein.

As a noun mainline is

an airline's main operating unit, as opposed to codeshares or regional subsidiaries.

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 ----

    mainline

    English

    Adjective

    (wikipedia mainline) (-)
  • normal, principal or standard.
  • (rail transport) Of or pertaining to the principal route or line of a railway.
  • (rail transport) Of or pertaining to a surface railway as distinct from an underground, elevated or light rail one.

    • Synonyms

    * mainstream

    Verb

    (mainlin)
  • To inject (a drug) directly into a vein.

    • Derived terms

    * mainliner * mainlining

    Noun

    (en noun)
  • An airline's main operating unit, as opposed to codeshares or regional subsidiaries.
  • The main repository for a software project, from which different versions (forks) may be split off.

    • See also

    * main line