se·​cure | \ si-ˈkyu̇r How to pronounce secure (audio) , -ˈkyər\
securer; securest

Definition of secure

 (Entry 1 of 2)

1a : free from danger
b : affording safety a secure hideaway
c : trustworthy, dependable a secure foundation
d : free from risk of loss
2a : easy in mind : confident
b : assured in opinion or expectation : having no doubt
c archaic : unwisely free from fear or distrust : overconfident
3 : assured sense 1 a secure victory


secured; securing

Definition of secure (Entry 2 of 2)

transitive verb

1a : to relieve from exposure to danger : act to make safe against adverse contingencies secure a supply line from enemy raids
b : to put beyond hazard of losing or of not receiving : guarantee secure the blessings of libertyU.S. Constitution
c : to give pledge of payment to (a creditor) or of (an obligation) secure a note by a pledge of collateral
2a : to make fast secure a door secure a bike to a tree
b : to take (a person) into custody : hold fast : pinion
3a : to get secure usually lasting possession or control of secure a job
4 : to release (naval personnel) from work or duty

intransitive verb

1 of naval personnel : to stop work : go off duty
2 of a ship : to tie up : berth

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Other Words from secure


securely adverb
secureness noun


securer noun

Choose the Right Synonym for secure


ensure, insure, assure, secure mean to make a thing or person sure. ensure, insure, and assure are interchangeable in many contexts where they indicate the making certain or inevitable of an outcome, but ensure may imply a virtual guarantee the government has ensured the safety of the refugees , while insure sometimes stresses the taking of necessary measures beforehand careful planning should insure the success of the party , and assure distinctively implies the removal of doubt and suspense from a person's mind. I assure you that no harm will be done secure implies action taken to guard against attack or loss. sent reinforcements to secure their position

Examples of secure in a Sentence

Adjective We need to make our network more secure against attacks by hackers. The children were safe and secure in their beds. A safe is provided to keep your valuables secure from potential thieves. You should store your valuables in a secure place. How secure is your front door? You are now entering a secure area. I'm feeling secure about my place in the company. The company has established a secure foothold in the market. He believes his job is secure. They didn't begin to celebrate until they knew their victory was secure. Verb We must secure the country's borders. Secure your belongings under the seat. secure a child safety seat The seat is secured to the base by three screws. She scored a goal to secure the team's victory. She secured the zoo's future with a handsome bequest. He secured a loan using his house as collateral.
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Recent Examples on the Web: Adjective The crack in the window glass was on a north facing window in a corridor that is secure and not open to the public. San Diego Union-Tribune, "Cracked window high up in new downtown courthouse closes sidewalk for weeks," 15 Sep. 2019 The county's proposal is separate from the state's plans to build a secure facility on Teutonia Avenue in Milwaukee. Alison Dirr, Milwaukee Journal Sentinel, "Milwaukee County revises proposal for juvenile offenders — more classes, fewer beds and a new plan for girls," 12 Sep. 2019 Keith's arrest exposed a weakness in Johnson County's justice system, where there is no secure detention facility for sick or injured inmates. Vic Ryckaert, Indianapolis Star, "The World War II vet was held captive by an escapee. Then he became someone else.," 3 Sep. 2019 Arab-Israeli increasing collaboration may be good news for some Jews wishing to be more secure as visitors or residents in Arab countries. David Mednicoff, The Conversation, "Why increasing Arab-Israeli closeness matters," 29 Aug. 2019 The Apple Card was unveiled during the company's Worldwide Developer Conference in June as a simple, secure and data-rich approach to credit. Dwight Silverman, Houston Chronicle, "The Apple Card is available to everyone, but is it right for you?," 20 Aug. 2019 The blockchain can keep records secure and encrypted across a large number of nodes, making the currency nearly impossible to steal. Chris Taylor, Fortune, "Is It ‘Only Human’ to Feel Anxious About Money? Talking Finance With Sofia the Robot," 2 Aug. 2019 Here’s how Alabama is using its $6.5 million allocation, according to the report: -- $3 million to improve the voter registration database, including a two-factor authentication to ensure that voter data is secure and reliable. Mike Cason,, "Report says aging voting machines a concern in Alabama," 19 July 2019 In most advanced countries payments are quick, secure and reliable thanks to widespread use of credit and debit cards. Greg Ip, WSJ, "Facebook’s Libra Could Give Dollar, Banks Some Welcome Competition," 26 June 2019 Recent Examples on the Web: Verb The school was placed on lockdown for about an hour as officers secured the scene and determined there was no other threat to the school. Jay R. Jordan, Houston Chronicle, "Houston police say officer kills armed man outside elementary school," 16 Sep. 2019 Starring Jennifer Lopez and Constance Wu, the film follows savvy strippers, who secure the bag by tricking their Wall Street clientele. Paula Rogo, Essence, "The Celebs Were Out And About At Toronto Film Festival," 9 Sep. 2019 All eyes will be on Henrikh Mkhitaryan, who secured a loan move from Arsenal to Roma on Monday., "Armenia vs Italy Preview: Where to Watch, Buy Tickets, Live Stream, Kick Off Time & Team News," 4 Sep. 2019 Periodically rearresting a suspect on suspicion of new charges allows prosecutors to keep the suspect in custody while attempting to build a case or secure a confession. Washington Post, "Why Ghosn’s Back in Jail and What It Says About Japan," 18 Sep. 2019 Top off and secure your curls with a lightweight serum to boost hair radiance—like Mon Shampooing Sublime Serum ($46;—and a curl-friendly mousse, like Moroccanoil Beach Wave Mousse ($11; Susan Brickell,, "Selena Gomez Is Embracing Her Natural Curls for Fall—and We Have Stylist Tips to Get Her Look," 16 Sep. 2019 A month earlier, Morales had fulfilled a campaign pledge to stop prosecuting, and thereby imprisoning, people for marijuana possession, securing the necessary agreement from the city’s judges to dismiss such cases. Andrew Cockburn, Harper's magazine, "Power of Attorney," 16 Sep. 2019 Harris comes out the backfield untouched and uncovered and secures the pass from Tua Tagovailoa before turning upfield. Nathan Baird,, "Is Ohio State football’s defense ready for Clemson and Alabama? Buckeye Rewatch," 16 Sep. 2019 Three new growers are setting up shop alongside the 15 businesses that secured cultivating licenses three years ago. Erin Cox,, "Why Maryland’s medical pot growers are adding more plants," 16 Sep. 2019

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'secure.' 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 secure


circa 1545, in the meaning defined at sense 2c


1588, in the meaning defined at transitive sense 1a

History and Etymology for secure


Latin securus safe, secure, from se without + cura care — more at suicide

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Learn More about secure

Statistics for secure

Last Updated

26 Oct 2019

Time Traveler for secure

The first known use of secure was circa 1545

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More Definitions for secure


How to pronounce secure (audio)

English Language Learners Definition of secure

 (Entry 1 of 2)

: protected from danger or harm
: providing protection from danger or harm
: guarded so that no one can enter or leave without approval



English Language Learners Definition of secure (Entry 2 of 2)

somewhat formal
: to make (something) safe by guarding or protecting it
: to put (something) in a place or position so that it will not move
: to make (something) certain


se·​cure | \ si-ˈkyu̇r How to pronounce secure (audio) \
securer; securest

Kids Definition of secure

 (Entry 1 of 2)

1 : free from danger or risk Being home made me feel secure.
2 : strong or firm enough to ensure safety a secure lock
3 : free from worry or doubt : confident He's secure in his abilities.
4 : sure entry 1 sense 5, certain Victory is secure.


secured; securing

Kids Definition of secure (Entry 2 of 2)

1 : to make safe Police secured the building.
2 : to fasten or put something in a place to keep it from coming loose Secure your belongings under the seat.
3 : to get hold of : acquire … “Your father has finally secured passage for us …”— Theodore Taylor, The Cay
secured; securing

Legal Definition of secure

1 : to put beyond hazard of losing or not receiving secure the blessings of libertyU.S. Constitution preamble
2a : to protect or make certain (as by lien) make a just and equitable partition and secure the parties' respective interestsDenton v. Lazenby, 879 P.2d 607 (1994)
b : to give security for (as a loan) or otherwise assure the payment, performance, or execution of with security the court imposed a lien on his property to secure the judgment
c : to give or pledge security to (as a creditor) broadly : to cause to have security or a security interest a creditor secured by a lien on real property

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More from Merriam-Webster on secure

Thesaurus: All synonyms and antonyms for secure

Rhyming Dictionary: Words that rhyme with secure

Spanish Central: Translation of secure

Nglish: Translation of secure for Spanish Speakers

Britannica English: Translation of secure for Arabic Speakers

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