Word.ws English Dictionary

Plural of sac

regular plural

The plural of sac is sacs.

Forms of sac

Singularsac /sæk/
Pluralsacs /sæks/
Countablecountable

Sacs in a sentence

  • Increased pressure in the anterior air sacs forces exploited air out the tracheal system.2012, E.W. Jr. Jameson, Patterns of Vertebrate Biology, page 116. From the entry dorsobronchus
  • Billy Tower lived in the far left house in the banjo that was Dagenham's version of cul de sacs.2013, M. C. Dutton, The Godfathers of London. From the entry banjo
  • The early embryo nidated into the endometrium (decidua) is a fluid-filled sphere which contains smaller fluid-containing sacs in addition to the embryonic disc.2000, P. Ebbesen, “1.3: Placenta Physiology”, in Pierre Ambroise-Thomas, Eskild Petersen, editors, Congenital Toxoplasmosis: Scientific…. From the entry nidate
  • Lymph hearts of lower vertebrates are propulsatile organs, whose main function is to pump the lymph from subcutaneous lymph sacs into the venous system.1998, Russian Journal of Developmental Biology - Volume 29, page 307. From the entry propulsatile
  • Simultaneously, low pressure in the anterior sacs (cervical, interclavicular and anterior throacic) supports the flow from the ventrobronchi; prior to exhalation this air enters the anterior air sacs.2012, E.W. Jr. Jameson, Patterns of Vertebrate Biology, page 116. From the entry dorsobronchus

Meaning of sac

  1. noun A bag or pouch inside a plant or animal that typically contains a fluid.
  2. verb To sacrifice.
  3. noun A sacrifice.

Full definition of sac

Questions about the plural of sac

What is the plural of sac?
The plural of sac is sacs.
Is sac countable?
Sac is a countable noun.

Source and license

Adapted from Wiktionary: sac (page history and authors) and the entries of its forms. Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws left out forms marked obsolete, archaic, rare or dialectal and added the examples. Wiktionary data of 2026-09-02.

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