Cool MateDuration vs Span
When to use each in English, with meaning, register, and examples.
Duration
Top 2,000 (common)B2noun
Span
Top 2,000 (common)C1verb
| Duration | Span | |
|---|---|---|
| Pronunciation | 🇬🇧 /["/djuˈreɪʃn/"]/🇺🇸 /["/duˈreɪʃn/"]/ | 🇬🇧 /["/spæn/","/spænz/","/spænd/","/ˈspænɪŋ/"]/🇺🇸 /["/spæn/","/spænz/","/spænd/","/ˈspænɪŋ/"]/ |
| Meaning | The length of time something lasts. | To stretch across or cover an area. |
| Example | The school was used as a hospital for the duration of the war. | His acting career spanned 55 years. |
| Register | Neutral | Neutral |
| How common | Top 2,000 (common) | Top 2,000 (common) |
| CEFR level | B2 | C1 |
| Part of speech | noun | verb |
| Collocations | brief, short, limited, decrease, reduce, shorten, for the duration (of), of… duration, throughout the duration of | span a distance, span a period of time, span generations, span across, span the globe |
| Antonyms | moment, instant | contract, recede, shorten |
| Common mistakes | Confused with 'session', which refers to a specific meeting or period of activity., Using it incorrectly as a verb, e.g., 'to duration something.', Mixing it up with 'interval,' which refers to a break or pause rather than the length. | Confused with 'spend' in terms of time context., Used incorrectly in passive voice; 'spanned' should be used when something is already in the past., Misused in context; often used incorrectly as a synonym for 'cover' or 'contain'. |
| Usage notes | Commonly used in both formal and informal contexts. Refers to time periods, such as how long a movie is or how long an event lasts. Avoid using it in very casual conversations. | Use 'span' to describe distance, duration, or extent. More common in technical or descriptive contexts. Avoid in very casual conversation. |
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Frequently asked questions: Duration vs Span
What's the difference between Duration and Span?
Duration: The length of time something lasts. Span: To stretch across or cover an area.
Which is more advanced: Duration and Span?
Span is the highest level, at C1, on the CEFR scale.
Are Duration and Span the same CEFR level?
Duration: B2, Span: C1 on the CEFR scale.
What part of speech are Duration and Span?
Duration: noun, Span: verb.
Can you show an example of each?
Duration: The school was used as a hospital for the duration of the war. Span: His acting career spanned 55 years.
Can I use Duration and Span interchangeably?
Not always. Duration and Span are related and overlap in some contexts, but they differ in register, how common they are, and usage, so swapping one for another can change the meaning or tone. Check the differences above before substituting.