What does AMP stand for? In web publishing it stands for Accelerated Mobile Pages, an open source framework for building stripped down web pages that load fast on phones. Outside the web, the same letters often mean adenosine monophosphate in biology, and the lowercase word amp is short for ampere or amplifier.
The setting usually settles it. A site owner or marketer talking about "AMP pages" means the mobile framework. A biology textbook means the molecule. An electrician or a guitarist means current or a speaker box.
Quick facts
Stands for (web)
Accelerated Mobile PagesOther meanings
Adenosine monophosphate; ampere; amplifierType
Acronym, said as one wordHow to say it
AMP, like lamp without the LUsed in
Web publishing, SEO, biology, electronics, musicNot to be confused with
The ampersand sign (&), sometimes called amp in code
What does AMP stand for on websites?
On the web, each letter has a plain job:
- A for Accelerated: the page is built to load quickly.
- M for Mobile: the target is a phone on a slow or shaky connection.
- P for Pages: the result is an ordinary web page with a special, lighter set of rules.
An AMP page uses a limited form of HTML, keeps custom scripts to a minimum, and sizes every image in advance so the layout does not jump while it loads. The framework was launched by a major search engine with news publishers in the mid 2010s and is now run as an open source project. Pages built this way can also be stored and served from a cache, which is part of why they appear almost instantly.
How AMP is used in real life
You are most likely to meet the term in website and marketing work.
In a team chat: "The blog still has AMP versions of old posts. Do we keep them or redirect to the normal pages?" Here AMP means the lightweight mobile copies of each article.
For a few years, AMP mattered for SEO because fast mobile news pages got special spots in search results. That requirement was later dropped, and page speed is now judged the same way for any page. Many sites have since moved away from separate AMP copies, while others still use the framework for stories, emails and ads. You may also notice "amp" inside a URL, a sign that you opened the AMP version of an article.
AMP in biology and medicine
In science classes, AMP is adenosine monophosphate, a building block of RNA and a close relative of ATP, the molecule cells use to carry energy.
| Short form | Full name | Phosphate groups |
|---|---|---|
| AMP | Adenosine monophosphate | 1 |
| ADP | Adenosine diphosphate | 2 |
| ATP | Adenosine triphosphate | 3 |
When a cell spends energy, ATP loses phosphate groups and becomes ADP or AMP. Biology students also meet cyclic AMP, written cAMP, a signaling molecule that passes messages inside cells. For more on cell chemistry terms, see DNA and RNA.
Amp as a short word: amperes and amplifiers
Here amp is not an acronym at all. It is a clipped form of a longer word.
- Ampere: the unit of electric current, symbol A. A 20 amp circuit breaker trips when more than 20 amperes flow through it. Amperage is the amount of current.
- Amplifier: the device that makes a sound signal stronger, like a guitar amp or a car stereo amp.
- Amped: casual slang for excited or full of energy, as in "The crowd was amped."
Charger labels, extension cords and breaker panels use the ampere sense, so if you are reading a power label, AMP means current, not web pages.
Other meanings of AMP by field
| Field | Stands for | Example |
|---|---|---|
| Web and SEO | Accelerated Mobile Pages | "Validate the AMP version before publishing." |
| Biology | Adenosine monophosphate | "ATP breaks down into ADP and AMP." |
| Electricity | Ampere (amp) | "This outlet is on a 15 amp circuit." |
| Music and audio | Amplifier (amp) | "Plug the guitar into the amp." |
| Code and HTML | Ampersand, written & | "Replace & with & in the markup." |
For more web and gadget terms, browse the tech acronyms section.
Saying and spelling AMP
People say AMP as one word, rhyming with camp, which makes it an acronym rather than an initialism. In web writing it is usually capitalized: AMP, AMP page, AMP version. The electrical and audio words stay lowercase in normal sentences ("a 10 amp fuse"), and the unit symbol for ampere is a capital A.
Spoken aloud it opens with the short a of apple, so it takes "an": "an AMP page," "an amp rating." The plural of the device is amps, and the same plural works for the unit: "The charger draws two amps."
Questions people ask
What does AMP stand for in SEO?
In SEO, AMP stands for Accelerated Mobile Pages, a framework for fast loading mobile pages. It is no longer required for top news spots in search results, so many sites now treat it as optional.
What does AMP stand for in biology?
It stands for adenosine monophosphate, a molecule with one phosphate group. It is related to ADP and ATP, which carry energy in cells.
Is amp short for ampere?
Yes. In electricity, amp is the everyday short form of ampere, the unit of current. The official unit symbol is a capital A.
What does amp mean in a URL?
An amp in a web address usually means you are viewing the AMP version of a page. It can also appear as part of the code for an ampersand, written &.
How do you pronounce AMP?
Say it as one word, like the end of camp or lamp. People do not read it as A M P.