approx

IPA/ɐpɹˈɒks/
IPA/ɐpɹˈɑːks/

approx — abbreviation

1. used in writing as a shorter form of 'approximately', to show that a number, amo

1.abbreviationB1
Definition

used in writing as a shorter form of 'approximately', to show that a number, amount, or time is not exact but close to the real figure

Example

The journey from London to Edinburgh takes approx 4 hours by train.

approx + [time duration]

Vinícius spends approx $200 a month on groceries for his family.

approx + [monetary amount]

Common collocations
  • approx + [number]
  • approx + [time]
  • approx + [distance]
  • approx + [amount]
Synonyms
  • approximately

    the full written form; suitable for all registers including formal writing

  • about

    common in everyday speech and informal writing; 'approx' is almost exclusively written, not spoken

Grammar Patterns

approx + [time/distance/amount/number]

Usage Note

Common in notes, forms, tables, and informal writing; avoid using 'approx' in formal academic essays, legal documents, or official reports — write 'approximately' instead.

Common Mistakes

The report states that approx 200 people attended.' (acceptable in informal notes, but too casual for a formal report).
The report states that approximately 200 people attended.
Use the full form 'approximately' in formal writing; reserve 'approx' for informal contexts, tables, and handwritten notes.

Word family

Etymology

LatinEnglish

Shortened form of 'approximately', which traces back to Latin 'approximatus', past participle of 'approximare' meaning 'to come near to'. The Latin word is formed from 'ad-' (toward) plus 'proximus' (nearest).