# crucial

Pronunciation: US say "KROO-shul" /ˈkɹuː.ʃəl/; AUS say "KROO-shuhl" /ˈkɹuː.ʃəl/

## Adjective

1. So important that the result or future course of something depends on it.
   - Simple: Very important, because the result depends on it.
   - _Witness testimony proved crucial to the outcome of the trial._
   - _Timing is crucial when transplanting seedlings into the garden._
2. Very good or excellent, applied particularly to reggae music. *(slang, Jamaica)*
   - Simple: Very good or excellent, especially when talking about reggae music.
   - _The selector spun a crucial roots track and the whole dance erupted._
   - _That dub plate from Kingston is crucial: sweetest bassline I've heard all year._

## Adjective

3. Cross-shaped; cruciform or cruciate in form. *(archaic)*
   - Simple: Shaped like a cross or a plus sign.

## Origin

First recorded in 1706, from French crucial, a medical term for the ligaments of the knee (which cross each other), from Latin crux, crucis ("cross"), from Proto-Indo-European *(s)ker- ("to turn, to bend"). The meaning "decisive, critical" was extended from a logical term, Instantias Crucis, adopted by Francis Bacon in his 1620 Novum Organum, the notion being of cross-shaped signposts at forking roads that require a choice.

Source: DictionaryAI, https://dictionaryai.com/define/crucial (written from Wiktionary data, CC BY-SA 4.0: https://creativecommons.org/licenses/by-sa/4.0/).