how on earth

Register · Informal Informal — used in casual, everyday conversation among friends and family. Avoid in formal writing or professional settings. CEFR B1

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Figurative meaning

an emphatic way of asking 'how', expressing surprise or disbelief

Why this phrase?

'On earth' is just for emphasis, not about the planet.

Example

“How on earth did you finish so quickly?”

Dictionary details

Tags

surprise

Expressions connected by reviewed component words or topic tags.

hang on a minute Informal · CEFR A2

used to ask someone to wait, or to express surprise or objection

ring a bell Informal · CEFR B1

to sound familiar or remind you of something

what on earth Informal · CEFR B1

an emphatic way of asking 'what', expressing surprise or confusion

jump up and down Informal · CEFR B2

to react with strong excitement or anger about something

out of the blue Informal · CEFR B2

suddenly and unexpectedly

speak of the devil Informal · CEFR B2

Said when a person you were just talking about suddenly appears.

Source methodology

Meanings, register, CEFR, and examples come from the reviewed dictionary record. Expression notes may describe a reviewed present-day word picture or a background note; they are not presented as verified etymology.

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