first of all
First of all (adverb) means Before anything else; used to introduce the first item in a list of points, steps or objections. Example: “First of all, preheat the oven to 180°C.”
How to Use First of all
Learner’s notesIn plain EnglishThe thing to say or do before all the others.
Neutral to informal. In speech it often signals mild indignation before a rebuttal ("First of all, how dare you"). Formal writing prefers firstly or first.
Follow it with a comma, and if you open a list with first of all, keep the sequence going with second, then, next and finally.
Fill the Gap
Can you complete this real example?
_____, preheat the oven to 180°C.
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Frequently Asked Questions
What is the difference between first of all and at first?
First of all orders your points or steps: it means before anything else on the list. At first describes an earlier stage in time that later changed — "at first I hated it, but then I got used to it". They are not interchangeable.
Is it wrong to say first of all when you only make one point?
It is not wrong, but it sets up an expectation of a second point, so listeners may wait for one. If you have only one thing to say, use to begin with or simply say it.