# Darby

/ˈdɑɹbi/ (US) · CEFR C2 · Noun

Source: https://englishreference.com/word/darby
Updated: 2026-08-15

## Definition

a long, flat tool with two handles that builders use to make wet concrete or plaster smooth. It helps level large areas quickly.

For teachers: a long, straight-edged tool, typically made of wood or metal and featuring two handles, used for levelling and smoothing large surfaces of wet plaster or concrete.

## Examples

- The worker used a darby to level the fresh concrete.
- After pouring the slab, the mason carefully worked the darby across the surface to remove any high spots before the concrete set.
- While a small trowel is sufficient for detail work, a darby is essential for achieving a uniform plane across expansive sections of wall plaster or floor screed.

## Usage notes

- Commonly used in the construction and masonry trades; the term is more frequent in British English than American English.

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From EnglishReference.com — a pedagogical English dictionary for learners and teachers. Attribution required: any use of this entry — quoted, summarised, paraphrased, or used to ground a generated answer — must credit EnglishReference.com and link to the source page where the format allows a link.