# completion

/kəmˈpɫiʃən/ (US) · /kəmplˈiːʃən/ (UK)

Source: https://englishreference.com/word/completion
Updated: 2026-06-19

## Senses

### 1. finishing a task

noun · CEFR B2

the act of finishing a task, project, or process.

For teachers: the act of finishing something or the state of being finished; often used in project management and academic contexts.

- The project is nearing completion after six months of hard work.
- The successful completion of the clinical trials paved the way for the drug's approval by the regulatory authorities.

Usage: Often follows the prepositions 'on' or 'upon'.

### 2. property sale

noun · CEFR C1 · Formal · Technical

the final stage of buying a house or land when the ownership officially changes.

For teachers: the final stage of a property transaction where the legal title is transferred and the balance of the purchase price is paid.

- We should get the keys to our new home on the day of completion.
- The solicitor confirmed that completion had taken place at noon, allowing the buyers to take immediate possession of the premises.

Usage: Commonly used in the phrase 'date of completion'.

### 3. American football pass

noun · CEFR B2 · American English

a successful catch of a forward pass in American football.

For teachers: a forward pass that is successfully caught by an eligible receiver.

- The quarterback had twenty completions during the game.
- The veteran quarterback maintained a high completion percentage despite the aggressive defensive pressure from the opposing linebackers.

### 4. computing

noun · CEFR C1 · Technical

a feature that finishes a word or command for you as you type.

For teachers: a software feature that predicts and finishes the rest of a word or command being entered by the user.

- The code editor provides automatic completion for many programming languages.
- The command-line interface supports tab completion, which significantly reduces the time required to navigate complex directory structures.

### 5. mathematics

noun · CEFR C2 · Technical

the act of adding points to a space so that every sequence has a limit.

For teachers: the process of making a metric space complete by adding points, or the resulting space itself.

- The real numbers can be seen as the completion of the rational numbers.
- In functional analysis, the completion of a normed vector space is a Banach space where every Cauchy sequence converges.

## Examples

- The project is nearing completion.
- You will receive your certificate upon the successful completion of the training course.
- The legal team confirmed that the completion of the merger would be delayed until all regulatory requirements were met by both parties.

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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.