\ ˈsak How to pronounce sac (audio) \

Definition of sac

 (Entry 1 of 4)

: a pouch within an animal or plant often containing a fluid a synovial sac

Definition of sac (Entry 2 of 4)



Definition of Sac (Entry 3 of 4)

variant of

Definition of SAC (Entry 4 of 4)

1 special agent in charge
2 Strategic Air Command

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Other Words from sac


saclike \ ˈsak-​ˌlīk How to pronounce SAC (audio) \ adjective

Examples of sac in a Sentence

Recent Examples on the Web: Noun Saloman helped himself with an RBI single and a sac fly RBI. Richard Obert, The Arizona Republic, "Hamilton advances to 6A baseball semifinals to face Alhambra, Daniel Avitia," 11 May 2021 Then Culberson scored on a sac fly to shortstop, making a heads up baserunning play after Andrelton Simmons had a circus catch to temporarily save the game. Dallas News, "Comeback kids: Willie Calhoun, Adolis Garcia’s late-game heroics lift Rangers past Twins in latest comeback win," 5 May 2021 There is a huge tumor and a sac of fluid around it. Kyle Smith, National Review, "Building Love from Bad News," 22 Apr. 2021 Police pursued Arboleda after responding to a call about a suspicious person who had been knocking on doors in a quiet cul-de-sac of the affluent San Ramon Valley town. Rachel Swan, San Francisco Chronicle, "Danville police officer will face felony charges in 2018 killing of unarmed motorist, source says," 20 Apr. 2021 The Rangers took advantage of the gift, as Adolis García blasted a sac fly to deep center to put the Rangers ahead, 1-0., "Quiet bats, defensive lapses doom Red Sox in Arlington opener against Rangers," 29 Apr. 2021 Eian Headley scored on a fielding error and Sam Smith scored off a sac fly from Childers. Reports, al, "AHSAA baseball playoff roundup: Chilton County sweeps Hueytown, more," 23 Apr. 2021 Reyes stole third base, allowing Robbie Grossman to drive him in on a sac fly. Evan Petzold, Detroit Free Press, "Detroit Tigers' Michael Fulmer stung by singles in 3-2 loss to Pirates in Game 1," 21 Apr. 2021 Destiny Holmes went 3-for-3 with a single, double, home run, sac fly, five RBIs and one run scored. Ben Thomas |, al, "South Sports Roundup: Class 2A No. 1 St. Luke’s sweeps past J.U. Blacksher," 5 Apr. 2021

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'sac.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of sac


1741, in the meaning defined above

History and Etymology for sac


French, literally, bag, from Latin saccus — more at sack

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Statistics for sac

Last Updated

16 May 2021

Cite this Entry

“Sac.” Dictionary, Merriam-Webster, Accessed 18 May. 2021.

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More Definitions for sac



English Language Learners Definition of sac

: a part inside the body of an animal or plant that is shaped like a bag and that usually contains liquid or air


\ ˈsak How to pronounce sac (audio) \

Kids Definition of sac

: a part of a plant or animal resembling a bag and often containing a liquid or air

Other Words from sac

saclike \ -​ˌlīk \ adjective


\ ˈsak How to pronounce sac (audio) \

Medical Definition of sac

: a soft-walled anatomical cavity usually having a narrow opening or none at all and often containing a special fluid a synovial sac — see air sac, amniotic sac, dental sac, lacrimal sac

More from Merriam-Webster on sac

Nglish: Translation of sac for Spanish Speakers

Britannica English: Translation of sac for Arabic Speakers

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