English Reference

Word

directional

Phoneticsdi·rec·tion·al, stress on the second syllable

US/daɪˈɹɛkʃɪnəɫ/

UK/daɪɹˈɛkʃənəl/

Definitions

01pointing in a direction

B2 · Upper Intermediate

adj. relating to or pointing in a specific direction.

adj. relating to, indicating, or functioning in a specific direction.

“The hikers followed directional signs to find their way back to the camp.”

“The installation of directional signage throughout the terminal significantly reduced passenger confusion during the peak holiday season.”

Usage

Usually placed before the noun it describes.

Synonyms

02sending energy one way

C1 · Advanced Science Technical

adj. sending sound, light, or radio waves in one specific direction rather than everywhere.

adj. designed to send or receive signals, such as sound or radio waves, in a specific direction.

“The band used a directional microphone to record the singer without picking up the drums.”

“By employing a directional antenna, the researchers were able to transmit data to the remote station with minimal interference from other signals.”

Usage

Commonly used in acoustics, telecommunications, and physics.

Teaching tip

This is a common technical term in audio and tech contexts; contrast it with 'omnidirectional' which means in all directions.

Synonyms

Antonyms

omnidirectional

03vehicle turn signal

B2 · Upper Intermediate Countable noun American English · Informal

n. a flashing light on a car that shows which way the driver wants to turn.

n. a flashing light on a vehicle used to signal an intended change in direction.

“He forgot to use his directional before turning left at the intersection.”

“The driver was pulled over by the police for failing to activate his directional when merging into the fast lane.”

Usage

Used as a countable noun.

Teaching tip

In British English, people almost exclusively use 'indicator'. 'Directional' as a noun is specific to certain North American dialects.

Synonyms

blinkerturn signalindicator

Real-World Examples

“And studying caterpillars’ hearing systems and imitating how their “hearing hairs” work could inspire such directional microphones.”
The Conversation 2 Sept 2026

Etymology

From direction + -al.

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

Word family

ADJECTIVE

directional(B2)

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

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English Reference