First of all vs Firstly vs For one thing

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

First of all

Top 2000 (courant)

Firstly

FormelTop 3000 (courant)A2adverb

For one thing

Top 3000 (courant)
Le plus formel: FirstlyLe plus courant: First of all
 First of allFirstlyFor one thing
Prononciation🇬🇧 //fɜːst əv ɔːl//🇺🇸 //fɜrst əv ɔl//🇬🇧 /["/ˈfɜːstli/"]/🇺🇸 /["/ˈfɜːrstli/"]/🇬🇧 //fɔː wʌn θɪŋ//🇺🇸 //fɔr wʌn θɪŋ//
SensPour commencer ; le premier point à mentionner.To start with; the first point to mention.At the start of a list or explanation.Une raison ou un point à considérer.One reason or point to consider.
ExempleFirst of all, we need to discuss the budget for next year.There are two reasons for this decision: firstly…For one thing, it’s cheaper to travel by bus.
RegistreNeutreFormelNeutre
FréquenceTop 2000 (courant)Top 3000 (courant)Top 3000 (courant)
Niveau CEFR-A2-
Nature grammaticaleadverb
Collocationsfirst of all, we need, first of all, let's discuss, first of all, thank you, first of all, I want to, first of all, rememberfirstly and secondly, firstly then, firstly I would likefor one thing, for one important thing, for one specific thing
Antonymes-lastly, finally-
Erreurs fréquentesUsing it in the middle of a sentence instead of at the beginning., Confusing with 'firstly', which is more formal., Omitting 'of all' and saying only 'first'.'Firstly' is not often used in informal contexts., Some learners confuse 'firstly' with 'first,' thinking they can use them interchangeably in all situations., Overusing 'firstly' when listing items can sound overly formal.Using it without context, making it unclear., Incorrectly following it with unrelated statements., Confusing it with similar phrases like 'for one reason'.
Notes d'usageSouvent utilisé pour introduire le premier point d'une liste. Approprié dans les contextes parlés et écrits. À éviter dans des contextes très formels.Often used to introduce the first point in a list. Appropriate in both spoken and written contexts. Avoid in very formal settings.Use 'firstly' to introduce the first point in formal writing or speeches. Avoid in casual conversations; 'first' is often preferred instead.Utilisez cette expression pour introduire une raison ou un point dans une discussion. C'est souvent utilisé de manière informelle, mais peut aussi convenir dans des contextes plus sérieux.Use this phrase to introduce a reason or point in discussions. It's often used informally but can be appropriate in more serious contexts as well.

Vois-le dans de vrais extraits

First of all
Firstly
For one thing

Questions fréquentes : First of all vs Firstly vs For one thing

Quelle est la différence entre First of all, Firstly et For one thing ?

First of all: To start with; the first point to mention. Firstly: At the start of a list or explanation. For one thing: One reason or point to consider.

Lequel est le plus formel : First of all, Firstly et For one thing ?

Firstly est le plus formel de tous.

Lequel est le plus courant : First of all, Firstly et For one thing ?

First of all est le plus courant dans l'anglais de tous les jours.

Peux-tu montrer un exemple de chacun ?

First of all: First of all, we need to discuss the budget for next year. Firstly: There are two reasons for this decision: firstly… For one thing: For one thing, it’s cheaper to travel by bus.

Puis-je utiliser First of all, Firstly et For one thing de façon interchangeable ?

Pas toujours. First of all, Firstly et For one thing 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.

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