Use duly when the point is that a formal step has been completed in the required way.
Use duly when the point is that a formal step has been completed in the required way.
| Incorrect | Correct |
| The contract was dully signed by both parties. | The contract was duly signed by both parties. |
| The permit was duely issued yesterday. | The permit was duly issued yesterday. |
| The form was duly with the rules. | The form complied with the rules. |
| The agreement was duly and legal. | The agreement was valid and legal. |
Use duly for an outcome that follows naturally from what came before, especially in polished narration.
| Incorrect | Correct |
| She was duly late to the meeting. | She was predictably late to the meeting. |
| The train was duly the snow. | The train was delayed by the snow. |
| He will duly arrive tomorrow. | He will arrive in due course. |
| The team dully won after dominating the match. | The team duly won after dominating the match. |
Keep duly for formal correctness or an expected follow-through, not for dullness or a vague sense of soon.
Dully means in a dull way, while duly points to proper completion or an expected result.
From Middle English forms such as duweliche and duely, built from due and the adverb-forming ending -ly.
What does duly mean?
Duly means properly, correctly, or as expected, especially when something is done as required.
Is duly a formal word?
Yes. Duly is common in formal, legal, business, and official writing, though it can also appear in polished narration.
What does duly signed mean?
Duly signed means signed in the proper way, with the authority or procedure required for the document.
What is the difference between duly and dully?
Duly means properly or as expected. Dully means in a dull, boring, or muted way.
Can duly mean on time?
Yes, but usually as part of the broader idea of something happening when expected or in due course.
What are synonyms of duly?
Useful synonyms include properly, correctly, appropriately, legally, accordingly, and in due course.