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THE ENGLISH DICTIONARY

English English

CEFR LEVEL

3335 entries have no recorded CEFR level and are included in All.

285 words & expressions

on behalf of

phrase

As an authorized representative, spokesperson, or agent of a person or institution

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On Cloud Nine

idiom

Extremely happy, euphoric, or elated.

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On Demand

phrase

Available immediately whenever requested, needed, or prompted

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On Display

phrase

Shown publicly so that people can clearly see, observe, or notice

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on duty

phrase

Actively engaged in scheduled work or official professional responsibilities

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on edge

phrase

Feeling tense, nervous, or anxious, especially before an important outcome.

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on fire

phrase

Performing exceptionally well; experiencing an intense burst of productivity and momentum.

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on foot

phrase B1

walking rather than traveling by vehicle

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On Guard

phrase

Remaining watchful, alert, and cautious to prevent errors, falsehoods, or risks.

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On Hold

phrase

Temporarily paused, suspended, or postponed until future notice or clarity.

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On Line

phrase

Operating via the internet; connected in real-time, or organized in structured alignment

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on my way

phrase A1

currently traveling along a journey toward a destination

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on one condition

phrase A2

only provided that a specific requirement is fulfilled

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On Pins and Needles

idiom

Extremely anxious, tense, or in suspense about what will happen.

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On Purpose

phrase

Deliberately, intentionally, and with premeditated calculation rather than by accident.

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On sale

phrase

available to be bought at a price lower than usual

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on schedule

phrase A2

At the expected time; progressing according to the planned timetable; at the expected or planned time without any delay

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On Second Thought

phrase

After thinking about something again and reconsidering one's decision

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On Strike

phrase

Engaged in an organized collective refusal to work or cooperate as a protest

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On Target

phrase

Completely accurate, highly relevant, and precisely addressing the core issue

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On the Air

phrase

Broadcasting live on radio, television, or internet stream

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On the Ball

idiom

Alert, quick to understand, attentive, and competent.

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On the Blink

idiom

Malfunctioning, failing, or not operating properly (usually said of a machine or device).

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On the Cheap

idiom

Spending as little money as possible; done inexpensively, sometimes with lower quality.

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on the contrary

phrase

Used to introduce an opposing statement or to emphasize that the opposite is true.

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On the Dot

idiom

Punctually; exactly at the designated time.

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On the Fence

idiom

Undecided or neutral between two opposing choices or opinions.

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On the Fly

idiom

Spontaneously, hastily, or while continuing an activity without pausing to plan.

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On the Fritz

idiom

Broken, out of order, or operating erratically.

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On the Go

phrase

Constantly active, moving around, or performing tasks while traveling; extremely busy.

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On the House

idiom

Provided free of charge by the establishment, especially food or drinks in a hospitality venue

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On the Level

idiom

Honest, straightforward, sincere, and trustworthy

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On the Line

idiom

At risk, in jeopardy, or subject to being lost

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on the main road

phrase B1

located alongside or on a major, busy street

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On the Move

phrase

In the process of traveling, changing physical locations, or advancing continuously.

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on the other hand

phrase

Used to introduce a contrasting fact, view, or perspective

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On the Road

phrase

Traveling for an extended period, especially on business tours or long road journeys.

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on the same page

idiom B1

sharing the same understanding, opinions, or agreement about a topic; Sharing the same mindset, understanding, or agreement; in agreement about what needs to be done; having a shared understanding

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on the spot

phrase

Immediately and without prior warning; or placed in a challenging situation requiring instant recall or reaction.; Immediately and without hesitation; also placed in an awkward position requiring an instant choice

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On the Spur of the Moment

idiom

Done spontaneously or impulsively without previous thought or planning

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