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Ab vs Os - What's the difference?

ab | os |

In lang=en terms the difference between ab and os

is that ab is an abscess caused by injecting an illegal drug, usually heroin while os is a mouth; an opening.

As nouns the difference between ab and os

is that ab is abdominal muscle while OS is an Ordnance Survey map.

As initialisms the difference between ab and os

is that ab is able seaman; able-bodied seaman while OS is ordnance Survey.

As an abbreviation AB

is alberta, a province of Canada.

As a proper noun Ab

is av.

ab

English

(wikipedia ab)

Etymology 1

Abbreviation of (abdominal) (muscles).

Noun

(en noun)
  • (informal) abdominal muscle.
  • * 2006 , H. Peter Steeves, The Things Themselves (page 75)
    • The bikinied models in most of the ESPN2 shows have abs . Many of the malnourished bikinied models in the commercials have visible rib cages. How did the two get conflated into a shared vision of beauty?
  • * 2010 , Bill Geiger, "6-pack Abs in 9 Weeks", Reps! 17:106
    • When possible, do your ab workout on a day when you're not training a major muscle group.
    Usage notes
    Most often used attributively. Substantive use is more common in the plural form (abs).

    Etymology 2

    Abbreviation of (abscess).

    Noun

    (en noun)
  • (slang) An abscess caused by injecting an illegal drug, usually heroin.

    • Etymology 3

    Abbreviations, see definitions.

    os

    English

    Initialism

    (Initialism) (head)
  • Ordnance Survey
  • oculus sinister — left eye
  • outsize

    • Derived terms

    * (operating system) RTOS , JeOS

    Noun

    (en-noun)
  • (UK) an Ordnance Survey map.
    • We've got an OS of the Cuckmere area.
  • (software) operating system
    • I've decided to install two different OSes on my new laptop.
  • * 2008 , Karim Yaghmour, Jon Masters, Gilad Ben-Yossef, Building Embedded Linux Systems
    • Some vendors do now have a variant of the per-unit royalty (usually termed a “shared risk,” or similar approach), but it is not strictly the same as for those proprietary embedded OSes mentioned before
  • * 2010 , Jorge Orchilles, Microsoft Windows 7 Administrator's Reference
    • A policy-created scheduled task will be accepted by computers running client OSes as old as Windows 2000
  • * 2009 , Emmett Dulaney', CompTIA A+ Complete Review Guide
    • In a dual-boot configuration, you install two OSs on the computer (Windows XP and Windows 2000, for example).

    Anagrams

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