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


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.


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

Although many contracts are functionally guaranteed into year three due to early trigger dates, only a handful of NFL contracts have a three-year guarantee at signing, the most secure money possible. Andrew Brandt,, "The Financial Impact of Antonio Brown’s Movement," 17 Sep. 2019 Glue the openings of the two front legs closed to keep the remaining stuffing secure. Woman's Day Staff, Woman's Day, "Repurposed Stuffed Animal Costume," 9 Sep. 2019 The best-quality resources are found in the most secure places. Tribune Content Agency, oregonlive, "Horoscope for Sept. 7, 2019: Happy birthday Evan Rachel Wood; Virgo, use your energy and take the lead," 7 Sep. 2019 Coinbase is betting that building a secure storage system that meets regulatory requirements will lure investors that have till now been wary of adding crypto to their portfolios. Jeff John Roberts, Fortune, "Exclusive: Coinbase Buys Xapo Custody for $55 Million, Eyes Lending Business," 15 Aug. 2019 Some of the newer electronic methods for administering elections have been met with growing skepticism from security experts who say that paper ballots remain the most secure way to count votes. Ben Popken, NBC News, "Utah to test out smartphone ballots with absentee voters," 26 July 2019 As far as keeping your data secure, the T5 has AES 256-bit hardware encryption and optional password protection. Valentina Palladino, Ars Technica, "Guidemaster: Ars tested and found the best USB-C accessories you can get now," 25 July 2019 Perceptics, based in Farragut, Tennessee, has championed its technology as a key part of keeping borders secure. Anchorage Daily News, "Photos of travelers taken in data breach, Customs and Border Protection says," 11 June 2019 Each home is designed as a safe and secure ranch-style home accessible for individuals of all abilities. Karen Pilarski, Milwaukee Journal Sentinel, "Brookfield parents propose a residential facility for people living with disabilities, like their daughter," 6 Sep. 2019

Recent Examples on the Web: Verb

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 The facility also plans to make snow once funding and permitting are secured. Zaz Hollander, Anchorage Daily News, "Miles to go before they ski: Backers of new Hatcher Pass alpine area hustle ahead of snowfall," 16 Sep. 2019 Angel Has Fallen secures the third-place spot in its fourth week of release with an estimated $4.4 million in ticket sales. Maureen Lee Lenker,, "Hustlers earns Jennifer Lopez a career high opening with $33.2 million debut," 15 Sep. 2019 To reduce the chance of backsliding, enlist the support of your Internet and IRL financial friends that, too, are about securing the bag, positive living, and living in financial harmony. Kara Stevens, Essence, "5 Tips To Make September Your Financial 'Self-Care' Month," 13 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

12 Oct 2019

Look-up Popularity

Time Traveler for secure

The first known use of secure was circa 1545

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More Definitions for secure



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

Rhyming Dictionary: Words that rhyme with secure

Thesaurus: All synonyms and antonyms for 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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