to double as

USAGE SUMMARY

The phrase "to double as" is correct and usable in written English. You can use it when describing something that serves two functions or roles simultaneously. Example: "The room can double as a guest bedroom." Alternative expressions include "to serve as" and "to function as."

✓ Grammatically correct

News & Media

Formal & Business

Human-verified examples from authoritative sources

Exact Expressions

57 human-written examples

Like all his CD's, this is one on which many songs seem to double as epitaphs.

The New York Times - Arts

Mr. Long also encouraged his fellow business leaders to double as diplomats.

The New York Times

Most singers would like to double as seers or mystics.

The Guardian - Music

He designed the space to double as a photography gallery.

The New York Times

Who says Christmas collections have to double as novelty albums?

The New York Times

From the first, novelists had to double as theorists, defining and justifying their heterodox form.

The Guardian

BOOKS OF LOVE: Books about hatred tend to double as analyses of racism and genocide.

The New York Times - Magazine

The device also works with PowerPoint, allowing it to double as a presentation remote.

The New York Times

Our talk was supposed to double as lunch, but Miller feeds on air and ideas.

The Guardian - Books

The cards were supposed to double as debit cards for Chicago's "unbanked" poor.

The New Yorker

So Washington went to work rounding up students, who had to double as construction workers.

The New Yorker

Expert writing Tips

Best practice

The phrase is particularly effective in descriptive writing to show versatility without using repetitive list structures.

Common error

Do not use "to double as" when you simply mean one thing is being added to another. It must imply that the single subject holds two identities or functions simultaneously.

Linguistic Context

The phrase "to double as" acts as an infinitive verb phrase that describes a state of dual utility or identity. According to Ludwig AI, it functions as a linking mechanism between a primary subject and its secondary role. It is grammatically structured as a verb followed by a prepositional particle that introduces the secondary function.

Expression frequency: Very common

Frequent in

News & Media

75%

Formal & Business

15%

Wiki

5%

Less common in

Science

2%

Social Media

2%

Encyclopedias

1%

Ludwig's WRAP-UP

The phrase "to double as" is a robust and highly efficient linguistic tool for describing multi-functionality. Ludwig AI confirms its status as a correct and widely used expression in top-tier English publications. It is particularly valuable for its ability to condense complex descriptions of dual roles into a single, punchy verb phrase. Whether you are writing a business report about a project that "doubles as" a community initiative or a creative piece about a room that "doubles as" a sanctuary, this phrase provides clarity and professional polish. Its high frequency in sources like The New York Times and The Guardian underscores its reliability for any writer seeking to emphasize versatility.

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

to serve as

More formal and widely used in academic or professional reporting

to function as

Focuses on the operational aspect or utility of an object

to act as

Suggests a temporary role or a specific behavioral capacity

to be used as

Directly identifies the secondary purpose of a tool or space

to perform as

Emphasizes the active execution of a secondary role

to operate as

Common in technical or business contexts to describe systemic roles

to do duty as

An idiomatic way to say something is fulfilling a necessary role

to moonlights as

Specifically used for people having a secondary, often hidden job

to suffice as

Suggests the item is adequate for the role but perhaps not intended for it

to masquerade as

Implies a false or deceptive secondary identity

FAQs

How do I use "to double as" in a sentence?

You can use it to describe multi-functional items, such as "The sofa was designed <a href="/s/to+double+as" target="_blank" rel="alternative">to double as a guest bed" or roles, like "The CEO had <a href="/s/to+double+as" target="_blank" rel="alternative">to double as a marketing lead during the startup phase".

What is a more formal way to say "to double as"?

In formal or academic contexts, you might prefer to use "<a href="/s/to+serve+as" target="_blank" rel="alternative">to serve as" or "<a href="/s/to+function+as" target="_blank" rel="alternative">to function as".

Can I use "to double as" for people?

Yes, it is common in journalism to describe people with dual roles, such as "The students had <a href="/s/to+double+as" target="_blank" rel="alternative">to double as construction workers" to help build their own school.

Is it "to double as" or "to double up as"?

Both are acceptable, but "<a href="/s/to+double+as" target="_blank" rel="alternative">to double as" is the more common standard in American and British journalism for describing functions.