ONE INTERESTING WORD, EVERY DAY.AN EDITION FOR THE CURIOUS
FROM THE ARCHIVEWednesday, September 23, 2026

lacuna

luh-KOO-nuh/ləˈkuːnə//noun
01 / MEANING

A gap or missing part, especially in a text, record, or line of reasoning.

In a sentence.

  1. 01

    A lacuna in the manuscript left the ending uncertain.

  2. 02

    The proposal had a lacuna where the budget should have been.

Where it came from.

English borrowed lacuna from Latin lacūna, a pit, hollow, or gap. It is related to Latin lacus, ‘lake,’ and is a distant cousin of lagoon.

Explore the source

Why it’s interesting.

It can describe a literal hole in an old page or the missing idea that makes an argument incomplete.

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