Firstandfirstly
Firstcan be an adjective or an adverb and refers to the person or thing that comesbefore all others in order, time, amount, quality or importance:
What’s the name of thefirstperson who walked on the moon?(adjective)
Beth always arrivesfirstat meetings.(adverb)
We often usefirst, especially in writing, to show the order of the points we want to make. When we are making lists, we can usefirstorfirstly.Firstlyis more formal thanfirst:
Dear Mr Yates
First(ly)I would like to thank you for your kind offer of a job …
Not:At first I would like to thank you…
First(ly)the sodium chloride is dissolved in the water and heated gently. Second(ly) a dye is added to the solution.
Not:At first, the sodium chloride…
At first
At firstmeans ‘at the beginning’ or ‘in the beginning’ and we use it when we make contrasts:
At firstwhen I went to England to study English, I was homesick, but in the end I cried when it was time to leave.
He called for help. No one heard himat first, but eventually two young girls came to help him.
See also:
Finally,at last,lastlyorin the end?