Defect vs Deficiency

Quand utiliser chacun en anglais, avec le sens, le registre et des exemples.

Defect

Top 3000 (courant) C1 noun

Deficiency

Formel Au-delà de 10 000 (moins courant) C1 noun

Le plus formel: Deficiency Le plus courant: Defect

	Defect	Deficiency
Prononciation	🇬🇧 //ˈdɛfɛkt// 🇺🇸 //dɪˈfɛkt// Écouter Defect	🇬🇧 /["/dɪˈfɪʃnsi/"]/ 🇺🇸 /["/dɪˈfɪʃnsi/"]/ Écouter Deficiency
Sens	A problem or flaw in something.	Not having enough of something you need.
Exemple	The product was recalled due to a serious defect.	A deficiency in vitamin D can lead to bone problems such as rickets.
Registre	Neutre	Formel
Fréquence	Top 3000 (courant)	Au-delà de 10 000 (moins courant)
Niveau CEFR	C1	C1
Nature grammaticale	noun	noun
Collocations	manufacturing defect, defect in design, quality defect	major, serious, severe, have, suffer from, correct, deficiency in, major, serious, severe, have, suffer from, correct, deficiency in
Antonymes	perfection, advantage, asset	surplus, abundance, plenty
Erreurs fréquentes	Confused with 'defect' (flaw) vs 'defection' (desertion)., Used as a verb rather than as a noun., Omitting the article 'a' when referring to a specific defect.	Confused with 'deficient' – 'deficiency' is a noun., Using 'deficiency' without 'of' – it should be 'deficiency of...'., Overusing in informal conversations – it's too formal for casual chats.
Notes d'usage	Commonly used in technical and academic contexts; can be informal in casual discussions about quality.	Used in medical, scientific, or formal contexts. Avoid using in casual conversation. It's appropriate when discussing health issues like vitamin deficiency.

Questions fréquentes : Defect vs Deficiency

Quelle est la différence entre Defect et Deficiency ?

Defect: A problem or flaw in something. Deficiency: Not having enough of something you need.

Lequel est le plus formel : Defect et Deficiency ?

Deficiency est le plus formel de tous.

Lequel est le plus courant : Defect et Deficiency ?

Defect est le plus courant dans l'anglais de tous les jours.

Defect et Deficiency sont-ils au même niveau CEFR ?

Defect: C1, Deficiency: C1 sur l'échelle CEFR.

Puis-je utiliser Defect et Deficiency de façon interchangeable ?

Pas toujours. Defect et Deficiency sont proches et se recoupent parfois, mais elles diffèrent par le registre, la fréquence et l'usage, donc remplacer l'une par l'autre peut changer le sens ou le ton. Regarde les différences ci-dessus avant de substituer.