What Does Et Al Mean in APA? Full Guide

Have you ever read a research paper and seen the phrase et al.?

Maybe you saw it in a citation and wondered what it means. You are not alone. Many students and writers see this term and feel confused.

It looks like a short cut. It is. But it has rules. And in APA style, those rules matter a lot.

This article will explain what et al. means. It will show you how to use it the right way. It will also show you real examples.

By the end, you will feel sure about using et al. in your own writing.

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Definition and Meaning

Et al. is a Latin phrase. It is short for “et alii.” In English, it means “and others.” Writers use it to avoid listing every author’s name in a citation. When a source has many authors, you do not need to write all their names. You write the first author’s name and then add et al.

The period at the end of al. is very important. It is always there because al. is an abbreviation. The word et is not an abbreviation, so it does not get a period. But al. always does. Many people forget this small but important rule.

In APA style, et al. is used in in-text citations. It helps keep your writing short and clean. It also helps readers focus on the ideas, not long lists of names.

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Usage and Examples

In APA 7th edition, the rules for using et al. are clear and simple. If a source has three or more authors, you use et al. right away. You do not need to list all the names first. You start with et al. from the very first citation.

This is different from older APA rules. In APA 6th edition, you had to list all authors the first time. Then you could use et al. after that. APA 7th edition made things simpler. Now you use et al. from the start when there are three or more authors.

Here are some clear examples:

Example 1 — Parenthetical citation: (Smith et al., 2021)

Example 2 — Narrative citation: Smith et al. (2021) found that students learn better with short breaks.

Example 3 — Two authors (do NOT use et al.): (Johnson & Lee, 2020)

Example 4 — One author (do NOT use et al.): (Brown, 2019)

As you can see, et al. only comes in when there are three or more authors. For one or two authors, you always write out all the names.

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Common Contexts and Applications

You will see et al. most often in academic writing. Research papers, essays, journal articles, and theses all use it. It is a normal and expected part of writing in APA style.

In psychology papers, sources often have large teams of researchers. A study might have five or six authors. Writing all those names every time would make the text very hard to read. Et al. fixes that problem fast.

In medical and health writing, the same thing happens. Clinical trials often have big research teams. Et al. keeps citations short without losing meaning.

In student essays, many teachers require APA format. If you are writing a college paper and you cite a source with three or more authors, you must use et al. Your teacher will expect it.

In reference lists, you do NOT use et al. This is a big and important point. In the reference list at the end of your paper, you write out all the authors’ names. You only use et al. in the body of your text, not at the end. APA 7th edition says to list up to 20 authors in the reference list. If there are 21 or more, you list the first 19, then add an ellipsis (…), then write the last author’s name.

Here is a simple table to help you remember when to use et al.:

Number of Authors	In-Text Citation	Reference List
1 author	Write full name	Write full name
2 authors	Write both names	Write both names
3 or more authors	Use et al.	Write all names (up to 20)
21 or more authors	Use et al.	First 19 names + … + last name

This table makes the rule easy to follow. Look at it whenever you feel unsure.

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Similar Terms or Alternatives

Et al. is the most common Latin short form in academic writing. But there are others you might see. Knowing them helps you read and write academic text with confidence.

“Etc.” stands for “et cetera,” which means “and so on.” You use it with things or ideas, not with people. You would never use etc. in place of et al. They are not the same.

“Ibid.” means “in the same place.” Some writing styles use it to refer back to the same source cited just before. APA style does not use ibid. at all, so you will not need it in APA writing.

“Op. cit.” means “in the work cited.” Again, APA does not use this. You might see it in older texts or in other citation styles like Chicago.

“And colleagues” is sometimes used in place of et al. in narrative writing. For example, you might say: “Smith and colleagues (2021) found…” This is perfectly fine in APA. It is a more natural, readable way to write. But in parenthetical citations, you must use the short form: (Smith et al., 2021).

The key point is this: in APA format, et al. is the correct and accepted short form. Stick to it, and you will be on safe ground.

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Common Misconceptions

There are some common mistakes people make with et al. Knowing them now will save you from making them later.

Misconception 1: “Et al. can replace two-author citations.” This is wrong. If a source has only two authors, you must write both names every single time. Et al. is only for three or more authors.

Misconception 2: “You do not need the period after al.” This is wrong. Al. is always abbreviated. It always needs a period. Writing “et al” without the period is a mistake.

Misconception 3: “Et al. is used in the reference list.” This is wrong. The reference list always includes full author names. Et al. only appears in in-text citations.

Misconception 4: “Et al. is italicized in APA.” This is wrong. In APA style, et al. is written in plain text. It is not italicized. Some other styles may italicize Latin terms, but APA does not.

Misconception 5: “You can use et al. for just two authors to save space.” This is wrong. APA has clear rules. Two authors means you write both names. There is no shortcut for that.

Misconception 6: “The first time you cite a source with many authors, you list all of them, then use et al. later.” This was true in APA 6th edition. It is not true anymore. APA 7th edition says to use et al. right away for three or more authors, even the first time.

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FAQs

What does et al. mean in APA format? In APA format, et al. means “and others.” It is used in in-text citations when a source has three or more authors. Instead of listing every author, you write the first author’s last name and then add et al.

When should I use et al. in APA 7th edition? Use et al. any time a source has three or more authors. You use it from the first citation. You do not need to write out all the names first. This is the rule in APA 7th edition.

Do I use et al. in the reference list? No. You never use et al. in the reference list. In the reference list, you write out all author names up to 20. If there are 21 or more authors, you write the first 19, add an ellipsis (…), and then write the last author’s name.

Does et al. need a period? Yes. Always write et al. with a period after al. The period shows that al. is an abbreviation. Missing this period is a common mistake.

Is et al. italicized in APA? No. In APA style, et al. is written in normal text. It is not italicized or underlined.

What if two sources have the same first author and year? If two different sources both start with the same author and same year, and both use et al., you need to name enough authors to tell them apart. For example: (Smith, Jones, et al., 2020) and (Smith, Brown, et al., 2020). This way, your reader knows which source you mean.

Can I use “and others” instead of et al.? In the body of your text, you can write “and colleagues” in a narrative citation. But in parenthetical citations, you must use et al. You cannot write “(Smith and others, 2021)” in APA format.

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Conclusion

Et al. is a small phrase with a big role in academic writing. It means “and others.” In APA 7th edition, you use it any time a source has three or more authors. You use it from the very first citation. You do not use it in the reference list. You always include the period after al. And you never italicize it in APA format.

Once you know these rules, using et al. becomes easy and natural. It keeps your writing clean. It makes your citations shorter. And it follows the standard that teachers, editors, and researchers expect.

The next time you write a paper and see a source with a long list of authors, you will know exactly what to do. Just write the first author’s last name, add et al., and keep writing. It is that simple.