How Acronyms Are Formed From Phrases
The simple rule is the first letter of every significant word. Most memorable acronyms break it, and the ways they break it are the interesting part. The Acronym Generator builds one from any phrase.
The patterns that work
Skipping the small words. Articles and prepositions are almost always dropped - otherwise every acronym is full of a, o and t, and nothing is pronounceable. Portable Network Graphics gives PNG, not PONG.
Borrowing a second letter. When the initials do not say anything, taking two letters from one word rescues it. This is how a great many pronounceable acronyms are built, and nobody notices it has happened.
Choosing the phrase to fit the word. The honest secret behind most memorable acronyms is that the word came first and the phrase was reverse-engineered to produce it. There is a term for this - a backronym - and it is extremely common in product and project naming.
Say it out loud, because that is the test
An acronym exists to be said. If it cannot be pronounced it will be spelled out letter by letter, which means it has to be short - three or four letters at most, because nobody says seven letters aloud twice.
A pronounceable acronym can be longer, and this is the real decision: are you making a word, or an abbreviation? SCUBA and NASA are words and people forget what they stood for. HTML and PDF are abbreviations and nobody tries to say them.
Two things to check before committing. Does it already mean something else? Most three-letter combinations are taken, often by something you would rather not share a name with, and a search takes ten seconds. And does it mean something unfortunate in another language, or read badly when someone sees it written for the first time without the expansion beside it.
When not to bother
If the full phrase is short, say the phrase. An acronym for something used twice in a document adds a lookup for the reader and saves nobody anything.
And spell it out on first use, every time, in anything a new reader might pick up. The author always knows what it stands for; that is precisely why they stop explaining it. If you need a short readable form for a URL rather than for speech, a slug from the Text to Slug Converter is usually a better answer than an acronym.
Common questions
What is the difference between an acronym and an initialism?
An acronym is said as a word, an initialism letter by letter. In ordinary use the word acronym covers both.
Should an acronym have full stops?
Modern style drops them. U.S.A. has become USA almost everywhere.
Can an acronym include a number?
It can, and it reads awkwardly unless the number is part of the name already.
Does an acronym need to spell a real word?
No, and the ones that do are usually backronyms. Pronounceable matters more than meaningful.
Got a phrase to shorten?