How to Use Alumni Plural or Singular (With Examples)

August 6, 2025
5 min read
By Yash, D

The Latin noun, alumni (meaning a graduate of a former school or university) is the plural of alumnus. Alumnus is singular.

How to Use Alumni Plural or Singular (With Examples)

Is “alumni” singular or plural?

👍🏼Usage Note
The alumni association organized a large reunion.
She is a proud alumna of the university.
A recent alumni was honored at the ceremony.
Several former alumnus spoke about their experiences.

The Latinate word alumni is the plural of alumnus. Alumnus is singular.

What’s the plural of alumnus?

Alumni is the plural. If you want to get more into it, the technical Latin plural for male graduate students is alumni. For female graduate students, the technical term is alumnae.

When referring to any or all genders (which may or may not be the case at all points in time), stick to alumni.

What’s the definition of alumnus/alumni?

Alumni (plural noun) are graduates of a former school, college, or university.

Traditionally, in Latin, alumnus (singular noun) referred to a graduate or former pupil student that is male.

Interestingly, the female-gendered counterpart of alumnus, which is alumna, meaning “female pupil or graduate of a school,” was coined nearly two centuries later in the 1860s.

Accordingly, the plural of former female graduates or students would be alumnae (though this is highly uncommon in modern usage).

Is alumnus/alumni a regular or irregular noun?

The plural and much more commonly used alumni is irregular, since it doesn’t end in the standard plural form of -s or -es. Only nouns that end in -s or -es are regular in English; all other noun endings are considered ‘irregular’, despite the fact that many exist.

What’s curious about alumni, however, is that unlike its Latinate counterparts (read: fungus, cactus, stimulus, syllabus, etc.), alumni stands as one of the few Latinate nouns that have stood the test of time in its original Latin form.

For example, funguses is now an accepted, Americanized plural of the original Latin plural, fungi. This is a speculation: likely, funguses came to be accepted over time because of frequent misuse (that or Noah Webster campaigned for it).

In the case that you didn’t know, all of us English-speaking individuals speak a little bit of Latin (and Greek, German, Dutch, Spanish, and so on). Alumnus and its plural half, alumni, are the original Latin forms of the word that have been in use since approximately the 1640s.

Singular Plural
cactus cacti (or cactuses)
octopus octopi (or octopuses)
radius radii (or radiuses)
fungus fungi (or funguses)
alumnus alumni (or alumnuses)
syllabus syllabi (or syllabuses)

See the chart showing the original Latinate plural, and uses one of the distinct Latin suffixes, i.e., -i: cactus, octopus, alumnus, fungus, hippopotamus. (Some of these are not originally Latin, but nevertheless use Latin suffixes.) Each has conserved their form since its inception (or near inception) as a word/noun.

💡Pro Grammar Tip

“Alumni” refers to multiple graduates: associate the “i” at the end with the “i” in “individuals” or “many.”

Alumnus and alumni, in application

Examples of “alumnus” Examples of “alumni”
Rundle College alumnus Aaron Goodarzi can’t say enough about the advantages of independent schooling. (Calgary Herald) He was never claimed in his lifetime by either college as one of its alumni.
Last month the Sonoma Valley High School girls’ basketball and volleyball programs held their second annual, and enjoyable, alumnae doubleheader in Pfeiffer Gym. (Sonoma News) The school has many famous alumni, most of them in sports.
Daniel Webster is just one famous alumnus. Call your alumni office for the same assistance and information.
In 1978, four stained glass windows were donated by a university alumnus. Both my mother and father are alumni of the University of Virginia.
John has also been honoured by the University of Chicago as a distinguished alumnus in 2002. James, John and David are Yale alumni, having graduated together in 1997.

Synonyms & nearby words

Synonyms Nearby Words
alumnae undergraduate
alumnus postgraduate
graduate scholar
grad student
alum classmate
former student/pupil peer

Worksheet: Latin nouns

Question 1 of 5

He is an accomplished ______ of Harvard University.



The college held a reunion for all its ______.



Many proud ______ attended the ceremony.



The forest was teeming with unusual ______.



The math teacher drew several ______ on the board to illustrate the concept.





FAQs

Is “alumni” singular or plural?
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“Alumni” is plural. It’s from the Latin “alumnus,” which is singular. Using “alumni” as a singular is incorrect.

What is the singular form of “alumni”?
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The singular form is “alumnus” for a male graduate or “alumna” for a female graduate. “Alumnus” is the original Latin singular form of the word.

What does “alumnus” or “alumni” mean?
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Alumni are graduates of a former school, college, or university. Traditionally, alumnus (singular) specifically referred to a male graduate or former pupil student.

Can I use “alumni” for one person?
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Typically, “alumni” is plural and should not be used as singular.

Yash, D. "How to Use Alumni Plural or Singular (With Examples)." Grammarflex, Aug 24, 2025, https://grammarflex.com/alumni-plural/.

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