world wide (worldwide)

Short answer: write worldwide as one word. It's the standard closed compound used as both an adjective and an adverb.

Quick answer

Use "worldwide" (one word) almost always. Avoid the two-word split "world wide." Hyphenation ("world-wide") is generally outdated unless a style guide or a proper name requires it.

"Worldwide" = correct for adjective and adverb.
Don't write "world wide" in standard modern English.
Use the spaced, capitalized form only for the historical proper name "World Wide Web" when that styling is required.

Core explanation: why 'worldwide' is one word

Over time many compounds fuse into a single word as they become common. "Worldwide" now appears as one closed word in major dictionaries and style guides because it expresses a single idea: spanning the world.

Splitting it into "world wide" is a spacing mistake that looks unpolished in business, academic, and published writing.

Closed compound = one word (e.g., worldwide, everyday).
Adjective: modifies a noun (a worldwide policy).
Adverb: modifies a verb (the film was released worldwide).

Wrong: The company has a world wide presence.
Right: The company has a worldwide presence.
Wrong: The film was released world wide.
Right: The film was released worldwide.

Hyphenation and spacing: when (if ever) to hyphenate

Most editors and style guides prefer the closed form "worldwide." The hyphenated "world-wide" is now rare and can look dated. Only mirror a brand's or proper name's original styling when required.

Example: the historical name "World Wide Web" is often written spaced and capitalized; follow that convention when referring to that entity.

Prefer: worldwide expansion
Avoid (old-fashioned): world-wide expansion
Special case: World Wide Web - preserve original spacing and capitalization if quoting the name.

Wrong: We launched a world-wide marketing campaign last quarter.
Right: We launched a worldwide marketing campaign last quarter.

Grammar notes: part of speech and placement

"Worldwide" works as an adjective before nouns and as an adverb after verbs or linking verbs. Because it's a closed compound, no hyphen is needed in either position.

Adjective (before noun): a worldwide study
Adverb (after verb): The program airs worldwide
No hyphen: worldwide coverage (not world-wide coverage)

Usage (adjective): The company announced a worldwide recall.
Usage (adverb): The charity operates worldwide.

Real usage: work, school, and casual examples

Tone affects phrasing but not spelling. Here are concise wrong/right examples for office, academic, and casual contexts.

Work - Wrong: We're planning a world wide rollout next month.
Right: We're planning a worldwide rollout next month.
Work - Wrong: Our support team offers world wide coverage.
Right: Our support team offers worldwide coverage.
Work - Wrong: The firm has world wide clients.
Right: The firm has worldwide clients.
School - Wrong: The study included world wide samples.
Right: The study included worldwide samples.
School - Wrong: World wide environmental trends were analyzed.
Right: Worldwide environmental trends were analyzed.
School - Wrong: He researched world wide trade patterns.
Right: He researched worldwide trade patterns.
Casual - Wrong: I want to travel world wide someday.
Right: I want to travel worldwide someday.
Casual - Wrong: They're on a world wide tour!
Right: They're on a worldwide tour!
Casual - Wrong: Seen that movie world wide?
Right: Seen that movie worldwide?

Examples: compact wrong/right pairs to copy

Quick fixes you can paste into a draft.

Wrong: Our brand has a world wide reputation.
Right: Our brand has a worldwide reputation.
Wrong: They launched a world wide initiative.
Right: They launched a worldwide initiative.
Wrong: Music from the artist was available world wide.
Right: Music from the artist was available worldwide.
Wrong: The survey included world wide respondents.
Right: The survey included worldwide respondents.
Wrong: Our product ships world wide.
Right: Our product ships worldwide.
Wrong: The company has world wide partners.
Right: The company has worldwide partners.

Try your own sentence

Test the whole sentence, not just the phrase; context usually makes the right choice clear.

Rewrite help: three quick revision recipes (with examples)

If you spot "world wide," pick one of these fast edits: fuse, swap, or expand for precision.

Recipe 1 - Fuse: change "world wide" to "worldwide" (fast fix).
Recipe 2 - Swap: use "global" when it's clearer or more concise.
Recipe 3 - Expand: replace with a precise phrase such as "in X countries" when you can be specific.

Original: We run a world wide loyalty program. Correction: We run a worldwide loyalty program.
Rewrite: We run a loyalty program available in over 30 countries.
Original: The announcement went out world wide. Correction: The announcement went out worldwide.
Rewrite: The announcement was distributed to our global audience.
Original: They have world wide influence. Correction: They have worldwide influence.
Rewrite: They influence audiences across multiple continents.

Fix checklist: quick steps to correct your document now

A short sequence you can run in any editor or email client.

Search for the two-word string "world wide" (case-insensitive).
Replace with "worldwide" or use a rewrite from the recipes above when tone or precision calls for it.
Check proper nouns (e.g., "World Wide Web") and follow the original styling.
Read the sentence aloud; if it still sounds awkward, try "global" or "in X countries."

Usage: "We have world wide partners." → "We have worldwide partners."
Usage: "Our product ships world wide." → "Our product ships worldwide." or "Our product ships to customers in 50+ countries."

Memory trick and similar confusions

Mnemonic: one width → one word. If something spans the world, lock it as one word: worldwide.

Many common compounds moved from two words to hyphenated to closed form. Spotting that pattern helps avoid spacing mistakes.

Memory: one width, one word = worldwide
Watch similar pairs: everyday vs. every day; sometime vs. some time; online vs. on line.
When precision matters, prefer "in X countries" or a precise count over a general adjective.

Wrong: He is an every day runner.
Right: He is an everyday runner.
Wrong: We'll meet some time next week.
Right: We'll meet sometime next week.
Usage: Instead of "worldwide presence" you might write "a presence in over 50 countries" for clarity.

Similar mistakes to watch for

Use the same proofreading habit-search for two-word compounds that now usually appear closed.

everyday vs every day
sometime vs some time
online vs on line
worldwide vs world-wide vs world wide

Work - Wrong: She joined the world-wide conference call.
Right: She joined the worldwide conference call.
Casual - Wrong: We'll go on an on line shopping spree.
Right: We'll go on an online shopping spree.

FAQ

Is "worldwide" one word or two?

"Worldwide" is one word for both adjective and adverb uses. Writing "world wide" as two words is incorrect in standard modern English.

Can I write "world-wide" with a hyphen?

Hyphenating "world-wide" is generally outdated. Use "worldwide" unless a specific style guide or brand instructs otherwise.

Why is "World Wide Web" spaced and capitalized?

"World Wide Web" is a historical proper name and often appears spaced and capitalized. When referring to that entity, preserve the original styling or the organization's preference.

Which is better: worldwide or global?

Both are correct. "Worldwide" emphasizes extent across the world; "global" is shorter and often more formal. Choose based on tone and the level of precision you need.

How can I quickly fix every instance in my document?

Search for the phrase "world wide" and replace with "worldwide." When context needs it, substitute "global" or a precise phrase like "in X countries."

Quick check before you send

If a sentence still feels off after fixing "worldwide," try one of the rewrite recipes above or paste the sentence into your editor's grammar tool. Small spacing fixes make your writing clearer and more professional.