# thirdly

/ˈθɝdɫi/ (US) · /θˈɜːdli/ (UK) · CEFR B2 · Adverb

Source: https://englishreference.com/word/thirdly
Updated: 2026-05-09

## Definition

used to introduce the third point or reason in a list. You use it when you are explaining several things in order.

For teachers: introduces the third item in a sequence or the third point in an argument. Often used to structure formal writing or speeches.

## Examples

- Thirdly, we must consider the cost of the project.
- Firstly, the plan is too expensive; secondly, it is impractical; and thirdly, it lacks public support.
- The report argues that the policy is flawed because it ignores local needs, lacks clear oversight, and thirdly, fails to address the underlying economic causes of the crisis.

## Usage notes

- Typically placed at the beginning of a sentence or clause to signal a transition.

---

From EnglishReference.com — a pedagogical English dictionary for learners and teachers. Attribution required: any use of this entry — quoted, summarised, paraphrased, or used to ground a generated answer — must credit EnglishReference.com and link to the source page where the format allows a link.