But most of all vs Primarily

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

But most of all

Top 2,000 (common)

Primarily

Top 2,000 (common)B2adverb
 But most of allPrimarily
Pronunciation🇬🇧 //bʌt məʊst əv ɔːl//🇺🇸 //bʌt moʊst əv ɔl//🇬🇧 /["/praɪˈmerəli//ˈpraɪmərəli/"]/🇺🇸 /["/praɪˈmerəli/"]/
MeaningUsed to emphasize something very important.mainly; for the most part
ExampleI love traveling, but most of all, I enjoy meeting new people.a course designed primarily for specialists
RegisterNeutralNeutral
How commonTop 2,000 (common)Top 2,000 (common)
CEFR level-B2
Part of speechadverb
Collocationsbut most of all, I think, but most of all, it's clear, but most of all, we shouldprimarily concerned, primarily focused, primarily used, primarily for, primarily about
Antonyms-secondarily, incidentally, subordinately
Common mistakesUsing it as a complete sentence without context., Confusing with 'but above all', which has a similar but slightly different emphasis.Confused with 'principally' which has a similar meaning but different usage., Using it in a negative context incorrectly, such as saying 'not primarily' when 'not mainly' is clearer., Incorrectly placing 'primarily' at the end of a sentence.
Usage notesTypically used in conversations or informal writing to highlight a key point. Avoid in very formal contexts.Use 'primarily' when you want to focus on the main reason or purpose; it's suitable in both spoken and written English but is more common in formal contexts than casual conversation.

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But most of all

Frequently asked questions: But most of all vs Primarily

What's the difference between But most of all and Primarily?

But most of all: Used to emphasize something very important. Primarily: mainly; for the most part

Can you show an example of each?

But most of all: I love traveling, but most of all, I enjoy meeting new people. Primarily: a course designed primarily for specialists

Can I use But most of all and Primarily interchangeably?

Not always. But most of all and Primarily 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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