English Reference

Word

blocker

Phoneticsblock·er, stress on the first syllable

US/ˈbɫɑkɝ/

UK/blˈɒkɐ/

Countable noun Business

Definition

n. something that stops you from making progress on a task or project. In a work setting, it is often a problem you need someone else to solve before you can continue.

n. an obstacle or impediment that prevents a process or task from advancing. In agile project management, it refers specifically to an external dependency or issue that halts a team member's workflow.

Examples

“The lack of a budget is a major blocker for our project.”

“During the morning meeting, the developer mentioned that the server downtime was a blocker for the new software release.”

“Identifying potential blockers early in the development cycle allows the project manager to reallocate resources and prevent a total stall in the production pipeline.”

Examples

simple

“The lack of a budget is a major blocker for our project.”

contextual

“During the morning meeting, the developer mentioned that the server downtime was a blocker for the new software release.”

complex

“Identifying potential blockers early in the development cycle allows the project manager to reallocate resources and prevent a total stall in the production pipeline.”

Usage

Commonly used in professional and technical environments to describe workflow interruptions.

Real-World Examples

“But app blockers and strict personal rules rarely seem to work very well, or for very long.”
The Guardian 3 Jan 2026

Word family

Idioms

Domain

Business

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.B2 FirstIELTSIELTSInternational English Language Testing SystemThe 0–9 band test co-owned by the British Council, IDP, and Cambridge. Used for university entry, work, and migration.5.5–6.5TOEFL 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: 4.0–4.572–94TOEICTOEICTest of English for International CommunicationETS's workplace English test, big in Japan and Korea. Listening & Reading scores 10–990 and tops out at C1.785–944
Frequency
Frequent
Level
B2 · Upper Intermediate
Updated

QR code

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English Reference