First of all vs Initially

When to use each in English, with meaning, register, and examples.

First of all

Top 2,000 (common)

Initially

Top 2,000 (common)B2adverb
 First of allInitially
Pronunciation🇬🇧 //fɜːst əv ɔːl//🇺🇸 //fɜrst əv ɔl//🇬🇧 /["/ɪˈnɪʃəli/"]/🇺🇸 /["/ɪˈnɪʃəli/"]/
MeaningTo start with; the first point to mention.At first; in the beginning.
ExampleFirst of all, we need to discuss the budget for next year.Initially, the system worked well.
RegisterNeutralNeutral
How commonTop 2,000 (common)Top 2,000 (common)
CEFR level-B2
Part of speechadverb
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, rememberinitially thought, initially planned, initially focused
Antonyms-finally, ultimately, later
Common mistakesUsing 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'.Using 'initial' as an adverb instead of 'initially'., Confusing 'initially' with 'ultimately' (which has the opposite meaning)., Placing 'initially' in the wrong position in a sentence.
Usage notesOften used to introduce the first point in a list. Appropriate in both spoken and written contexts. Avoid in very formal settings.Use 'initially' to describe something that happens at the start. It’s suitable for both written and spoken English but is more common in formal contexts.

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First of all

Frequently asked questions: First of all vs Initially

What's the difference between First of all and Initially?

First of all: To start with; the first point to mention. Initially: At first; in the beginning.

Can you show an example of each?

First of all: First of all, we need to discuss the budget for next year. Initially: Initially, the system worked well.

Can I use First of all and Initially interchangeably?

Not always. First of all and Initially are related and overlap in some contexts, but they differ in register, how common they are, and usage, so swapping one for another can change the meaning or tone. Check the differences above before substituting.

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