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Early in my teaching career, a student once asked, “Why do emails say ‘CC’ and ‘BCC’ if nobody’s copying anything?” That question stuck with me because it revealed something important: abbreviations that make sense in their original context often become mysteries once you’re removed from that context. Email abbreviations, degree titles, and texting shorthand all follow hidden logic — and once you understand the full forms, they’re instantly unforgettable. For more, see our English job interview tips. For more, see our understanding English accents.
You’ll walks you through 60 of the most common English abbreviations grouped by context: email and internet terms, educational degrees and job titles, and SMS language. You’ll learn not just what each abbreviation means, but when and where you’ll encounter it — and how to use it yourself.
Key Takeaways
- Email abbreviations = professional baseline — FYI, ASAP, CC, BCC, PS are used worldwide in business communication regardless of industry.
- Degree and job titles follow a pattern — BA, MA, MBA, CEO, CFO use the first letters of words; once you see the pattern, you’ll decode any title.
- SMS abbreviations are casual-only — LOL, BRB, IDK belong with friends and casual chat; never in professional emails or formal writing.
- Context matters for register — the same abbreviation can be appropriate in an email (FYI, BTW) but awkward in a formal letter (use “for your information” instead).
- Time-based abbreviations are universal — AM, PM, AD, BC are used across English-speaking countries in the same way.
Email and Internet Abbreviations
These abbreviations appear in almost every professional email, business document, and internet communication. Understanding them is essential for workplace English:
| Abbreviation | Full Form | Meaning | Example / Usage |
|---|---|---|---|
| CC | Carbon copy | Send a copy to an additional person (they can see it was copied) | “I’ll CC Sarah on this email so she’s in the loop.” |
| BCC | Blind carbon copy | Send a hidden copy (receiver doesn’t know this person got it) | Use BCC for privacy; the BCC’d person is invisible to others. |
| Re: | Regarding | The subject line indicates what an email is about | “Re: Project Update” = this email is about a project update. |
| FYI | For your information | Here’s something you should know (informational) | “FYI the deadline moved to Friday.” (heads up, no action needed) |
| PS | Post script | Extra information added at the very end of a letter or email | “Thanks for everything. PS — did you get my earlier message?” |
| RSVP | Respondez S’il Vous Plaît (French: please respond) | Request an answer about attendance at an event | “Dinner on Friday — RSVP by Wednesday please.” |
| Etc | Et cetera (Latin: and the rest) | And other things (trailing off a list) | “We’ll need pens, paper, markers, etc.” = and other office supplies |
| E.g. | Exempli gratia (Latin: for example) | Here are examples of what I mean | “Fruits, e.g., apples and oranges, are healthy.” = examples follow |
| i.e. | Id est (Latin: that is) | In other words; clarification of what you just said | “The meeting is next week, i.e., April 25th.” = that specific date clarifies “next week” |
| Electronic mail | Digital messages sent over the internet | “Send me an email when you’re free.” = a written digital message |
E.g. vs. i.e. memory hook: “e.g.” gives EXAMPLES. “i.e.” explains what you JUST SAID (restatement). Example: “I love citrus fruits (e.g., oranges, lemons)” vs. “My favorite season is spring (i.e., March–May)”.
More Email and Business Abbreviations
| Abbreviation | Full Form | Meaning | Context |
|---|---|---|---|
| CV | Curriculum Vitae | A document listing your education, work, and skills (resume) | Used in Europe and Asia; Americans usually say “resume” |
| PTO | Please turn over | More information on the back of the page or document | Written at bottom of page 1: “See page 2 — PTO” |
| No. | Number | Abbreviation for “number” in documents or lists | “No. 3 on the list” = item number three |
| BTW | By the way | Introducing a side note or tangent in casual emails | “The report’s done, BTW did you see my earlier email?” |
| ASAP | As soon as possible | Urgency; do something immediately | “I need this fixed ASAP” = high priority |
| Memo | Memorandum | A brief message or announcement to a group (official, not casual) | “I sent a memo about the policy change.” |
Time-Based Abbreviations (Used Across All Contexts)
These abbreviations appear in emails, formal documents, historical writing, and everyday communication. They’re universal:
| Abbreviation | Full Form | What It Means | Example |
|---|---|---|---|
| AM | Ante Meridian | Before noon (morning hours) | “The meeting is at 10 AM” = 10 in the morning |
| PM | Post Meridian | After noon (afternoon/evening hours) | “Let’s meet at 3 PM” = 3 in the afternoon |
| AD | Anno Domini (Latin: in the year of the Lord) | Years after the birth of Jesus (used in dating history) | “The Roman Empire fell in 476 AD” = 476 years after Jesus |
| BC | Before Christ | Years before the birth of Jesus | “Cleopatra ruled Egypt around 50 BC” = before Jesus was born |
| BCE | Before Common Era | Years before a common calendar reference (alternative to BC; more neutral) | “The Great Wall of China began in 600 BCE” |
| CE | Common Era | Years in the modern calendar (alternative to AD; more neutral) | “Modern democracy emerged around 600 CE” |
Educational Degrees and Job Title Abbreviations
When you see letters after someone’s name (like “Dr. Jane Smith, MD” or “James Brown, MBA”), those letters represent degrees or professional titles. Here are the most common ones:
| Abbreviation | Full Form | Type | Notes |
|---|---|---|---|
| BA | Bachelor of Arts | Undergraduate degree | 4-year degree in humanities, social sciences, or liberal arts |
| BS | Bachelor of Science | Undergraduate degree | 4-year degree in STEM (science, technology, engineering, math) |
| MA | Master of Arts | Graduate degree | Advanced degree (usually 2 years beyond BA) |
| MS | Master of Science | Graduate degree | Advanced degree in scientific or technical field |
| MBA | Master of Business Administration | Graduate degree | Business management degree (highly valued; 2 years typically) |
| M.PHIL or MPHIL | Master of Philosophy | Graduate degree | Research-focused degree (common in UK/Europe, less in US) |
| PhD | Doctor of Philosophy | Doctoral degree | Highest academic degree; requires original research |
| JD | Juris Doctor | Professional degree | Law degree (required to practice law) |
| MD | Medical Doctor | Professional degree | Physician / medical doctor degree |
| DC | Doctor of Chiropractic | Professional degree | Chiropractor degree |
| DDS | Doctor of Dental Surgery | Professional degree | Dentist degree |
Job Titles and Leadership Abbreviations
These abbreviations appear on business cards, in signatures, and on organizational charts:
| Abbreviation | Full Form | What They Do | Typical Company Size |
|---|---|---|---|
| CEO | Chief Executive Officer | Top leader of a company; makes biggest decisions | Any size |
| CFO | Chief Financial Officer | Manages money, budgets, finances | Medium to large |
| CMO | Chief Marketing Officer | Oversees marketing and brand strategy | Medium to large |
| CTO | Chief Technology Officer | Leads technology and innovation strategy | Tech companies |
| COO | Chief Operating Officer | Manages daily operations; second-in-command after CEO | Large companies |
| President | Not abbreviated | Often same as CEO, or head of one division | Any size |
| VP | Vice President | Senior manager reporting to C-level (CEO, CFO, etc.) | Medium to large |
| SVP | Senior Vice President | More senior than VP; manages multiple teams | Large companies |
| EVP | Executive Vice President | Very senior; reports directly to CEO | Large companies |
| PA | Personal Assistant | Helps one executive with scheduling, emails, tasks | Any size |
| MD | Managing Director | Top leader (mainly used in finance and law firms) | Finance, law |
C-level hierarchy: The CEO is the boss of the CFO, CMO, and CTO. A CFO is more senior than a VP. SVP and EVP are higher-ranking VPs. If you see someone’s title, higher-ranking titles usually have “Chief” or “Executive” in them.
Sample Dialogues: Using Abbreviations in Context
In a job interview (formal)
Interviewer: I see you have an MBA. Tell me about your experience.
Candidate: Yes, I completed my MBA at Boston University in 2020. My thesis was on corporate finance strategy. Before that, I worked as a PA to the CFO at a financial firm.
Interviewer: Excellent. We’ll CC our HR director on any offer emails. ASAP means we move quickly here.
In an email discussion (semi-formal)
Alex: FYI — the CEO wants the report ASAP. BTW, can you CC Sara on the final version?
Jordan: No problem. I’ll send it by Friday AM. E.g., I’ll include sales figures, marketing metrics, etc.
Alex: Perfect. One more thing — please add a PS about the Q2 projections.
Common Abbreviations You’ll See in Everyday Life
| Abbreviation | Full Form | Meaning / Use |
|---|---|---|
| Vet | Veterinarian | A doctor for animals; “I need to take my dog to the vet.” |
| PE | Physical Education | School gym class; “I have PE at 2 PM.” |
| Math | Mathematics | The subject; actually an abbreviation that became the standard word |
| Phone | Telephone | Same as phone; “I’ll call you on your phone.” |
| Cellphone or Mobile | Cellular phone / Mobile phone | Your personal device; formal vs. casual terms |
| Till | Until | Informal for “until”; “See you till Friday.” |
| Though | Although | Informal shortening; “It’s cold though.” = “Although it’s cold” |
| ‘Cause / Cos / Coz | Because | Very informal; “‘Cause I said so” = “Because I said so” |
Common Mistakes Learners Make
✗ Incorrect: “I have a BA in Psychology, so I don’t understand this BS you’re telling me.”
✓ Correct: “I have a BA in Psychology, so I don’t understand this nonsense you’re telling me.”
Why: Using “BS” (Bachelor of Science) when you mean “bullshit” is confusing and unprofessional. Use the full word or different vocabulary.
✗ Incorrect: “The meeting is at 10 AM PM tomorrow.”
✓ Correct: “The meeting is at 10 PM tomorrow.” (or “22:00 tomorrow”)
Why: Never use both AM and PM together; pick one. AM = morning, PM = afternoon/evening.
✗ Incorrect: “Use e.g. when you want to explain what you meant.” / “Use i.e. when you want to give examples.”
✓ Correct: “Use e.g. when you want to give examples.” / “Use i.e. when you want to explain what you meant.”
Why: These Latin abbreviations are opposite in meaning. Remember: e.g. = examples; i.e. = restatement (that is).
Quick Quiz
Test your understanding of common abbreviations:
- What does CC stand for in email? (a) Computer Copy (b) Carbon Copy (c) Certified Credential
- A “PhD” is: (a) a medical doctor (b) a dentist (c) someone with a doctoral research degree
- What time is 3 PM? (a) 3 in the morning (b) 3 in the afternoon (c) depends on the day
- Use “e.g.” when: (a) giving examples (b) restating what you said (c) listing rules
- A “CEO” is: (a) the accountant (b) the top leader of a company (c) a mid-level manager
Answers: 1. (b) · 2. (c) · 3. (b) · 4. (a) · 5. (b)
SMS and Texting Abbreviations (Quick Reference)
These belong in casual texts only, never in professional settings. For detailed information, see our SMS Language guide.
- LOL — Laugh out loud
- BRB — Be right back
- OMG — Oh my God
- IDK — I don’t know
- BTW — By the way
- ASAP — As soon as possible (also works in professional settings)
- FYI — For your information (also works in professional settings)
- JK — Just kidding
- TTYL — Talk to you later
- IMO — In my opinion
Register note: ASAP and FYI are acceptable in professional emails, but LOL, BRB, OMG, and IDK should stay casual-only. Always consider your audience before using abbreviations.
Related Articles
- ↑ Master Pillar: English Writing
- SMS Language: Texting and Chat Abbreviations
- Top 100+ Popular Texting Abbreviations and Internet Acronyms
- ↑ Back to pillar: Abbreviations and Acronyms (Pillar)
Frequently Asked Questions
What’s the difference between e.g. and i.e.?
E.g. (exempli gratia) means “for example” — you’re giving specific examples of something. I.e. (id est) means “that is” — you’re restating or clarifying what you just said. Example: “I love fruits, e.g., apples” (examples) vs. “I love summer, i.e., June-August” (restatement).
When should I use CC vs. BCC in email?
Use CC when you want someone to see the email and know that others also received it. Use BCC for privacy — the main recipient won’t know this person got a copy. BCC is useful for forwarding sensitive information to a third party without telling the original sender.
Is AM/PM the same in all English-speaking countries?
Not always. Many countries, especially in Europe and Asia, use 24-hour time instead (e.g., 14:00 instead of 2 PM). But AM and PM are universally understood in business English, so it’s safe to use them anywhere.
Do I need a degree abbreviation after my name?
Only in formal or professional contexts (business cards, email signatures, academic papers). You might write “Dr. John Smith, PhD” on a business card or in an academic paper, but in casual conversation or social media, just use “John Smith”. Professional credentials (MD, JD, DDS) are more commonly used than academic ones (PhD, MA).
Is it okay to use texting abbreviations (LOL, BRB) in professional emails?
No. Save casual abbreviations for texts to friends. In professional emails, use full words or accept-able abbreviations like ASAP, FYI, and BTW. When in doubt, spell it out. It’s always safer to be formal than to be too casual in work communication.
What does “etc.” mean, and can I use it in formal writing?
“Etc.” (et cetera) means “and the rest” — you’re trailing off from a list. Yes, you can use it in formal writing to indicate that more items exist but you’re not listing them all. Example: “Bring supplies: paper, pens, markers, etc.” (and other supplies implied).
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