English Reference

Word

unlock

Phoneticsun·lock, stress on the second syllable

US/ənˈɫɑk/

UK/ʌnlˈɒk/

Definitions

01to open a lock

A2 · Elementary

v. to open a door, box, or gate using a key or a secret code.

v. to undo a mechanical or electronic lock by means of a key, combination, or biometric data.

“I couldn't unlock the front door because I had the wrong set of keys.”

“The janitor had to unlock every classroom in the wing before the students arrived for their morning examinations.”

Usage

Transitive verb taking a physical object.

Synonyms

openunfasten

Antonyms

02digital access

A2 · Elementary Computing

v. to gain access to a phone, computer, or app by entering a password.

v. to bypass a security screen or encryption on a digital device to make it functional.

“You can unlock this phone just by looking at the camera.”

“Modern operating systems allow users to unlock their workstations using encrypted tokens or fingerprint recognition.”

Usage

Often used with 'phone', 'screen', or 'account'.

Synonyms

Antonyms

03to reveal potential

B2 · Upper Intermediate

v. to find a way to use a skill or a secret that was hidden before.

v. to release or make available a latent power, a hidden quality, or restricted information.

“This new course will help you unlock your creative potential.”

“The researchers hope that these new documents will finally unlock the mystery of the lost colony.”

Usage

Frequently collocates with 'potential', 'secrets', or 'mysteries'.

Antonyms

04remove carrier limits

B2 · Upper Intermediate Computing Technical

v. to change a phone's settings so it can work with any mobile company.

v. to remove a service provider's software restriction on a handset, allowing it to operate on any compatible network.

“I need to unlock my phone before I travel so I can use a local SIM card.”

“The technician explained that while the hardware was compatible, the carrier refused to unlock the device until the contract expired.”

05gaming reward

B1 · Intermediate Countable noun Computing Informal

n. a special feature or item in a video game that you earn by playing well.

n. an initially inaccessible feature, character, or item in a video game made available as a reward for achievement.

“If you finish the level in under three minutes, you get a secret unlock.”

“The latest patch added several cosmetic unlocks that players can earn by participating in the seasonal tournament.”

Collocations

Common phrases and expressions where native English speakers use the word “unlock” in context.

01. unlock new

Etymology

From Middle English unloken, unlouken, onlouken, from Old English onlūcan (“to unlock”), equivalent to un- + lock. Cognate with Dutch ontluiken (“to unlock”).

Etymology adapted from Wiktionary, available under CC BY-SA 4.0.

This entry

Exam level
CambridgeCambridgeCambridge English QualificationsThe exam suite from Cambridge University Press & Assessment, from A1 Movers up to C2 Proficiency. The benchmark names double as CEFR labels.A2 KeyIELTSIELTSInternational English Language Testing SystemThe 0–9 band test co-owned by the British Council, IDP, and Cambridge. Used for university entry, work, and migration.3.0–4.0TOEFL iBTTOEFL iBTTest of English as a Foreign Language, Internet-Based TestETS's academic English test, the standard route for US university admissions. Scored 0–120, with a 1–6 scale since 2026.1–6 scale: 2.0–2.524–43TOEICTOEICTest of English for International CommunicationETS's workplace English test, big in Japan and Korea. Listening & Reading scores 10–990 and tops out at C1.225–549
Frequency
Frequent
Level
A2 · Elementary
Updated

QR code

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English Reference