Definition

Adverb: Used to introduce the first point in a list, sequence, or argument. It indicates that something is being mentioned before anything else.

Usage

The word "firstly" is primarily used in formal or structured writing and speaking to enumerate points or steps. It is often followed by "secondly," "thirdly," etc. While common, some style guides prefer "first" without the "-ly" for enumerations.

Examples

• Firstly, we need to gather all the necessary data.
• The report is divided into three sections: firstly, an introduction; secondly, the methodology; and thirdly, the results.
• There are two reasons for this decision. Firstly, it is more cost-effective.

Advanced Usage

• In argumentation: "Firstly" is used to present the primary or most important argument.
  • I disagree for several reasons. Firstly, the premise is flawed.
• Sequential instructions: It can introduce the initial step in a process.
  • To assemble the unit, firstly ensure all parts are present.

Variants and Related Words

• First (adverb): Can often be used interchangeably with "firstly" to begin an enumeration.
  • First, let me thank you all for coming.
• First of all: A more emphatic phrase with a similar introductory function.
  • First of all, I must address a common misconception.

Synonyms

• First
• To begin with
• In the first place
• Primarily (when indicating the main reason)

Notes on Usage

"Firstly" is considered by some to be slightly less formal than "first" when listing points. In American English, "first," "second," "third" is a very common and accepted pattern, making "firstly" less frequent but still correct. There is no grammatical rule against using it.

Adverb

1. before anything else
   • first we must consider the garter snake