adjective, se·cur·er, se·cur·est.

verb (used with object), se·cured, se·cur·ing.

verb (used without object), se·cured, se·cur·ing.

to be or become safe; have or obtain security.
  1. to cover openings and make movable objects fast: The crew was ordered to secure for sea.
  2. to be excused from duty: to secure from general quarters.

Nearby words

  1. secundine,
  2. secundines,
  3. secundipara,
  4. secundly,
  5. secundus,
  6. secure server,
  7. secure tenancy,
  8. secure unit,
  9. securement,
  10. securities

Origin of secure

1525–35; < Latin sēcūrus carefree, equivalent to sē- se- + cūr(a) care (see cure) + -us adj. suffix; cf. sure

1. protected. See safe. 2. stable, fast, fixed. 7. confident. 10. gain. See get. 11. protect, guard, safeguard. 12. assure, guarantee.

Related forms Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for secure

British Dictionary definitions for secure



free from danger, damage, etc
free from fear, care, etc
in safe custody
not likely to fail, become loose, etc
able to be relied on; certaina secure investment
nautical stowed away or made inoperative
archaic careless or overconfident


(tr) to obtain or get possession ofI will secure some good seats
(when intr, often foll by against) to make or become free from danger, fear, etc
(tr) to make fast or firm; fasten
(when intr, often foll by against) to make or become certain; guaranteethis plan will secure your happiness
(tr) to assure (a creditor) of payment, as by giving security
(tr) to make (a military position) safe from attack
nautical to make (a vessel or its contents) safe or ready by battening down hatches, stowing gear, etc
(tr) nautical to stow or make inoperativeto secure the radio
Derived Forms

Word Origin for secure

C16: from Latin sēcūrus free from care, from sē- without + cūra care

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for secure
Online Etymology Dictionary, © 2010 Douglas Harper