Firstly
Adverb
UK
/ˈfɜːst.li/
US
/ˈfɝːst.li/
Definition
Used to show the first point or step in a list or explanation.
Example
"Firstly, turn off the lights."
"Firstly, we need to collect all the materials before starting the experiment."
"Firstly, I want to thank everyone who helped make this event successful and enjoyable for all."
Explanation
Firstly is used to show the first point or step when explaining or listing things. It helps organise ideas clearly. For example, “Firstly, we will discuss the plan. Secondly, we will start working.” Using “firstly” helps listeners or readers know the order of your ideas or actions. People often use “firstly” in formal speaking, essays, or presentations. It means the same as “first,” but it sounds more formal and polite.