Duration vs Extent vs Length vs Period

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

Duration

Top 2000 (courant) B2 noun

Extent

Top 2000 (courant) B2 noun

Length

Top 1000 (très courant) B1 noun

Period

Top 1000 (très courant) A1 noun

	Duration	Extent	Length	Period
Prononciation	🇬🇧 /["/djuˈreɪʃn/"]/ 🇺🇸 /["/duˈreɪʃn/"]/	🇬🇧 /["/ɪkˈstent/"]/ 🇺🇸 /["/ɪkˈstent/"]/	🇬🇧 /["/leŋkθ/"]/ 🇺🇸 /["/leŋkθ/"]/	🇬🇧 /["/ˈpɪəriəd/"]/ 🇺🇸 /["/ˈpɪriəd/"]/
Sens	The length of time something lasts.	The degree or amount of something.	How long something is from one end to another.	A length of time or the end of a sentence.
Exemple	The school was used as a hospital for the duration of the war.	The extent of the damage was greater than we initially thought.	The length of the table is about two meters.	We have a period for math today.
Registre	Neutre	Neutre	Neutre	Neutre
Fréquence	Top 2000 (courant)	Top 2000 (courant)	Top 1000 (très courant)	Top 1000 (très courant)
Niveau CEFR	B2	B2	B1	A1
Nature grammaticale	noun	noun	noun	noun
Collocations	brief, short, limited, decrease, reduce, shorten, for the duration (of), of… duration, throughout the duration of	full, greatest, maximum, reach, see, consider, in extent, to an extent, to a…extent, at something’s greatest extent, to a considerable extent, to a great extent, full, greatest, maximum, reach, see, consider, in extent, to an extent, to a…extent, at something’s greatest extent, to a considerable extent, to a great extent	entire, full, maximum, estimate, measure, have, along the length of, in length, at arm’s length, double, twice, three times, half, etc. the length of something, considerable, great, inordinate, cut, reduce, shorten, increase, decrease, at length, in length, length of time, do, swim	extended, lengthy, long, cover, span, begin, begin, commence, elapse, costume, furniture, after a period, during the period, throughout the period, the beginning of a period, the start of a period, the end of a period, extended, lengthy, long, cover, span, begin, begin, commence, elapse, costume, furniture, after a period, during the period, throughout the period, the beginning of a period, the start of a period, the end of a period, extended, lengthy, long, cover, span, begin, begin, commence, elapse, costume, furniture, after a period, during the period, throughout the period, the beginning of a period, the start of a period, the end of a period, heavy, light, menstrual, have, start, miss, start, stop, last, cramps, pains
Antonymes	moment, instant	limited, minimal, modest	shortness	moment, instant
Erreurs fréquentes	Confused with 'session', which refers to a specific meeting or period of activity., Using it incorrectly as a verb, e.g., 'to duration something.', Mixing it up with 'interval,' which refers to a break or pause rather than the length.	Using 'extent' as a verb rather than a noun., Confusing 'extent' with 'extent of' when referring to limits or boundaries., Overusing 'extent' when a simpler term like 'amount' would be clearer.	Confused with 'height' or 'width'., Incorrectly using as a verb., Using 'length' to describe time without context.	Confused with 'time period' as if it's one single word., Using 'period' instead of 'dot' when referring to a punctuation mark in some regions.
Notes d'usage	Commonly used in both formal and informal contexts. Refers to time periods, such as how long a movie is or how long an event lasts. Avoid using it in very casual conversations.	Use 'extent' in formal or written contexts when discussing levels or degrees. It's less common in everyday speech.	Use 'length' when discussing size or duration. It's appropriate in both everyday and academic contexts; avoid using in very casual situations.	Use 'period' when discussing time frames or in writing to indicate the end of a sentence. Avoid in very informal contexts or when discussing less standard uses like 'menstrual period' unless relevant.

Questions fréquentes : Duration vs Extent vs Length vs Period

Quelle est la différence entre Duration, Extent, Length et Period ?

Duration: The length of time something lasts. Extent: The degree or amount of something. Length: How long something is from one end to another. Period: A length of time or the end of a sentence.

Duration, Extent, Length et Period sont-ils au même niveau CEFR ?

Duration: B2, Extent: B2, Length: B1, Period: A1 sur l'échelle CEFR.

Quelle est la nature grammaticale de Duration, Extent, Length et Period ?

Duration: noun, Extent: noun, Length: noun, Period: noun.

Peux-tu montrer un exemple de chacun ?

Duration: The school was used as a hospital for the duration of the war. Extent: The extent of the damage was greater than we initially thought. Length: The length of the table is about two meters. Period: We have a period for math today.

Puis-je utiliser Duration, Extent, Length et Period de façon interchangeable ?

Pas toujours. Duration, Extent, Length et Period 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.