Quick answer: Use alumnus for one male graduate, alumna for one female graduate, alumni for a group of male graduates or a mixed-gender group, alumnae for a group of female graduates, and alum (or alums) as the informal, gender-neutral shortcut for any of these.
These Latin-derived words trip up even experienced writers because English doesn’t usually distinguish gender in plural nouns. You’ll see “alumni” misused for a single person, “alumna” confused with “alumni,” and “alum” dismissed as too casual when it’s actually perfectly acceptable in most contexts.
| Term | Meaning / When to use | Example sentence |
|---|---|---|
| Alumnus | One male graduate | “My brother is an alumnus of Stanford.” |
| Alumna | One female graduate | “She’s a distinguished alumna of the engineering program.” |
| Alumni | Multiple male graduates OR a mixed-gender group | “The alumni gathered for the homecoming reunion.” |
| Alumnae | Multiple female graduates | “The sorority’s alumnae donated to the scholarship fund.” |
| Alum | Informal, gender-neutral singular | “As a recent alum, I still check the job board.” |
| Alums | Informal, gender-neutral plural | “The event attracted alums from the past decade.” |
When to Use Alumnus
Use alumnus when you’re talking about one male graduate of a school, college, or university. This is the singular masculine form from Latin, and it’s the most formal way to refer to a single male graduate.
“alumnus” specifically denotes a male former student, and using it correctly shows attention to detail in formal writing.
Examples:
- “James is a proud alumnus of the Class of 2019.”
- “The alumnus donated $50,000 to build the new library.”
- “As an alumnus, he receives the quarterly magazine.”
Real-world mistake I see constantly:
- Wrong: “John is an alumni of Harvard.” (Using the plural form for one person)
- Right: “John is an alumnus of Harvard.”
When to Use Alumna
Use alumna when referring to one female graduate. This is the singular feminine form, and like “alumnus,” it’s the proper choice for formal writing, bios, and official communications.
Examples:
- “Maria is an alumna of the nursing program.”
- “The alumna gave a powerful commencement speech.”
- “She’s a notable alumna who went on to become CEO.”
Real-world mistake I catch in resumes all the time:
- Wrong: “Sarah is a proud alumni of NYU.” (Mixing singular female with plural form)
- Right: “Sarah is a proud alumna of NYU.”
When to Use Alumni
Alumni is the plural form for male graduates or for mixed-gender groups. This is where most confusion happens because “alumni” has become the default catch-all term, even when people are referring to just one person (which is incorrect).
Merriam-Webster’s usage guide confirms that “alumni” serves as the plural of “alumnus” and can refer to a group of male graduates or a coeducational group of any gender composition.
Examples:
- “The university’s alumni are invited to the gala.” (mixed group)
- “We have over 50,000 living alumni.” (mixed group)
- “The alumni of the men’s basketball team reunion was well-attended.” (all male)
Real-world mistake in LinkedIn profiles:
- Wrong: “I’m a recent alumni looking for opportunities.” (Using plural for yourself)
- Right: “I’m a recent alumnus looking for opportunities.” (if male)
- Right: “I’m a recent alumna looking for opportunities.” (if female)
- Right: “I’m a recent alum looking for opportunities.” (gender-neutral informal)
When to Use Alumnae
Use alumnae (pronounced uh-LUM-nee or alum-NAY) when referring to a group of female graduates only. This is the plural feminine form, and you’ll see it most often in contexts like sorority communications, women’s colleges, or female-specific programs. For more, see Alumni vs. alumnus vs. alumna vs. alumnae – what’s the ….
The University of Wisconsin’s editorial style guide notes that “alumnae” should be reserved exclusively for groups of women graduates to maintain precision in formal communications.
Examples:
- “The sorority’s alumnae gathered for their 50th reunion.”
- “A group of alumnae funded the new women’s leadership center.”
- “These alumnae have gone on to remarkable careers in medicine.”
When to Use Alum
Alum is the informal, shortened version that works for any gender in singular form, and alums works for plural. This is increasingly common in casual writing, social media, emails, and even some professional contexts where the Latin forms feel too stiff.
“alum” has gained widespread acceptance as a gender-neutral alternative, especially among younger graduates and in informal settings.
Examples:
- “I’m a proud alum of State University!” (singular, any gender)
- “The alums from the 90s really dominated the networking event.” (plural, any gender)
- “As a recent alum, I still use the career services.” (singular, any gender)
When “alum” is perfectly fine:
- Text messages and social media posts
- Casual emails to fellow graduates
- Informal networking conversations
- Blog posts with a conversational tone
- When you don’t know someone’s gender
When to stick with the formal forms:
- Official university communications
- Formal bios and introductions
- Academic writing
- Commencement programs
- Donor recognition materials
How to Remember the Difference
Here’s the memory trick I give every client who struggles with this:
Think of the endings like this:
- -us = one guy (alumnus) — like “cactus” (one cactus)
- -a = one girl (alumna) — like “diva” (one diva)
- -i = guys or mixed group (alumni) — like “cacti” (multiple cacti)
- -ae = girls only (alumnae) — the “ae” ending is exclusively feminine plural in Latin
- -um or -ums = casual, any gender (alum/alums) — the short, easy version
Another trick: If you can replace the word with “graduate” or “graduates” and the sentence still works, you’re probably using the right form. If you’re talking about one person, you need a singular word. If you’re talking about many people, you need a plural word.
The editor’s shortcut: When in doubt in casual writing, just use “alum” or “alums.” It’s gender-neutral, widely accepted, and you’ll never be wrong in informal contexts.
Common Mistakes and Exceptions
Mistake #1: Using “alumni” for one person
This is the most common error I see, especially on LinkedIn and in cover letters. People hear “alumni” used so often that they assume it’s the singular form.
- Wrong: “I am a proud alumni of UCLA.”
- Right: “I am a proud alumnus of UCLA.” (male)
- Right: “I am a proud alumna of UCLA.” (female)
- Right: “I am a proud alum of UCLA.” (either)
Mistake #2: Using “alumni” for an all-female group
If you’re talking about a group of women graduates only, “alumnae” is the technically correct form, though “alumni” is often used as a catch-all.
- Technically correct: “The sorority’s alumnae donated generously.”
- Common but less precise: “The sorority’s alumni donated generously.”
Mistake #3: Mixing up alumna and alumnae
These look similar but one is singular and one is plural.
- Wrong: “She is a notable alumnae of the program.” (plural ending for one person)
- Right: “She is a notable alumna of the program.”
Exception: When “alumni” functions as an adjective
You’ll see “alumni” used as an adjective in phrases like “alumni association,” “alumni magazine,” or “alumni relations.” In these cases, it doesn’t change form regardless of what you’re describing. For more, see Alumni vs. Alumnus: Usage Guide.
- “The alumni board meets monthly.”
- “She works in alumni relations.”
US vs. UK usage:
Both American and British English use these Latin forms the same way. However, British English is slightly more likely to accept “alum” in semi-formal contexts than American English, which tends to be more traditional in academic writing.
The trend toward “alum”:
Many universities now use “alum” and “alums” in their own communications because it’s inclusive and simpler. The University of Michigan, for example, uses “alums” in social media and informal communications while reserving “alumni” for formal publications.
Frequently Asked Questions
Is “alum” unprofessional?
Not necessarily. “Alum” is perfectly acceptable in emails, social media, casual networking, and most workplace communications. Reserve “alumnus” or “alumna” for formal bios, official documents, and academic writing.
Can I use “alumni” to refer to myself?
No. “Alumni” is plural, so you can’t use it for yourself alone. Say “I am an alumnus” (male), “I am an alumna” (female), or “I am an alum” (either gender).
What if I don’t know someone’s gender?
Use “alum” for singular or “alums” for plural. These are gender-neutral and widely accepted. Alternatively, use “graduate” or “graduates” to avoid the issue entirely.
Is “alumnae” pronounced differently from “alumni”?
Yes. “Alumnae” is pronounced uh-LUM-nee or alum-NAY (both are acceptable), while “alumni” is pronounced uh-LUM-nye. The different endings signal the gender distinction in Latin.
Kevin Williams holds a Master’s degree in English Language and Linguistics from the University of Edinburgh and brings over 15 years of experience to the field of lexical analysis and English word comparisons. His fascination with the nuances and subtleties of the English language began during an undergraduate project, which inspired him to further delve into the intricacies of semantic variances and etymological roots. His expertise lies in breaking down complex word pairings and explaining their evolution, especially in modern vernacular and historical usage. Kevin is particularly interested in how context and culture shape word meanings and their usage in diverse settings. He conducts in-depth analyses and writes engaging, accessible articles and comparative studies on word origins, synonyms, antonyms, and idiomatic expressions for CompareMyWords. His contributions aim to enlighten readers with a greater understanding of language intricacies.