30 alternatives to basic English words, with examples

You know how to say I'm very busy. But when an American coworker replies I'm swamped, you understand it from context, or you think you do. Multiply that by ten expressions in a meeting or a TV episode, and you get that familiar feeling: I understood it, more or less.

This list brings together 30 common swaps in everyday American English. Each one comes with an example sentence, a short note on what it really means and, when it matters, a note on register: whether it's informal, whether it works at the office, whether it sounds regional. For Brazilian readers, a Portuguese equivalent appears in parentheses where it helps.

Why are these the words that leave you at "more or less"?

Because they sit halfway between what every course teaches and what every native speaker uses. The basic versions (busy, tired, I think) show up in any beginner material. The alternatives rarely do, because each one is less frequent on its own. But added together, they come up all the time in real conversations.

Three things make these words hard:

• The meaning isn't the sum of the parts. You know wrap and up, but wrap up a meeting has nothing to do with wrapping paper. Phrasal verbs and fixed expressions have to be learned as a unit.
• They carry nuance. Swamped doesn't just mean busy. It means busy to the point of not keeping up. When you translate it to busy in your head, you lose exactly the information the other person wanted to get across.
• Context helps, but it can fool you. You guess the general meaning and move on. That works for following the scene, but not for using the expression later.

If you want to understand why filling these gaps pays off more than studying more of the same, read The words your English is missing. Here, the focus is practical: the swaps themselves.

How do you talk about work without repeating busy and finish?

With expressions that say how much work you have and where each task stands. These are the ones that come up most in meetings, emails and hallway conversations.

1. busy → swamped

Can we talk on Monday? I'm swamped with work right now. — Buried in work, with more than you can handle (atolado de trabalho).

Informal, but common in work emails and conversations. It works on its own (I'm swamped) or with the reason: swamped with work, swamped with emails.

2. busy (a place or a shift) → slammed

We were slammed at lunch today. — The lunch rush was nonstop; customers kept coming.

Slang, very common in restaurants, stores and customer service. Avoid it in formal emails.

3. a lot of work → a lot on my plate

I'd love to help, but I have a lot on my plate right now. — I already have many tasks and responsibilities.

Neutral and polite, a good way to turn down more work.

4. finish → wrap up

Let's wrap up. We're almost out of time. — Let's bring this to a close.

Neutral. It also works for projects: We're wrapping up the project this week.

5. postpone → push back

Can we push the call back to three? — Can we move the call to a later time, three o'clock?

Careful: push back on something has a different meaning: to resist or challenge it. A few people pushed back on the new deadline means some people questioned the new deadline.

6. talk about it later → circle back

Let me check with my manager and circle back. — I'll return to this topic once I have more information.

Corporate jargon: good to recognize, use it sparingly.

7. answer later → get back to you

I'll get back to you by Friday. — I'll reply with an answer by Friday.

Neutral, fine in any professional setting.

8. start → kick off

We're kicking off the project next week. — We're officially starting the project next week.

Neutral to informal. The noun kickoff (as in kickoff meeting) is also common.

9. I'll tell you → I'll keep you posted

No news yet, but I'll keep you posted. — I'll keep you updated as things happen.

Neutral.

How do you sound natural in everyday conversation?

By swapping full, textbook answers for short set phrases. In a fast conversation, these are the phrases that slip right past you when you don't know them.

10. I understand → got it / that makes sense

Got it, thanks. / Oh, that makes sense. — I understand. / I follow your reasoning.

Got it is short and informal. That makes sense shows you understood the reasoning, not just the information.

11. I don't know → beats me

"Where's Tom?" "Beats me." — I have no idea (sei lá).

Informal. In a professional setting, go with I'm not sure.

12. wait → hang on

Hang on a sec, let me grab my keys. — Wait a moment (peraí).

Informal. Hold on works the same way, including on the phone.

13. get / take → grab

Want to grab lunch tomorrow? — Want to have lunch together tomorrow?

Informal and very frequent. Grab a coffee, grab a bite (eat something quick).

14. I'm leaving → I'm heading out

I'm heading out. See you tomorrow. — I'm leaving now.

Neutral. It sounds more natural than I'm leaving now, which can come across as abrupt.

15. OK → sounds good

"Thursday at seven?" "Sounds good." — Agreed, it's a plan (fechado).

Neutral. The standard reply for accepting a plan.

16. no problem → don't worry about it

"Sorry I'm late." "Don't worry about it." — It's fine, no need to apologize (imagina).

Neutral and friendly. You'll also hear No worries, but Merriam-Webster records that form as more typical of Australia and the UK. Don't worry about it is the safe choice in American English.

How do you give your opinion without starting everything with I think?

By using expressions that show how sure you are, whether you agree, or whether you're on the fence. I think works for everything, and that's why it says so little.

17. I think → I'd say

I'd say it's about a twenty-minute drive. — My estimate is around twenty minutes by car.

Neutral. Good for estimates and opinions you're not completely sure about.

18. I think (an assumption) → I figure

I figure we'll need about two hours. — My guess, based on what I know, is that we'll need about two hours.

Informal. You may have heard I reckon with the same meaning, but Merriam-Webster labels that use as dialectal, that is, regional. For standard American English, stick with I figure or I'd say.

19. in my opinion → if you ask me

If you ask me, the first season was better. — In my personal opinion.

Informal. In my opinion isn't wrong; it just sounds more like writing.

20. I agree → that's a fair point

That's a fair point. I hadn't thought of that. — Your argument is reasonable.

Neutral. The short version, Fair enough, accepts the point without necessarily agreeing with everything: something like "OK, that's reasonable."

21. I don't believe it → I'm not sure I buy it

He says he was stuck in traffic, but I'm not sure I buy it. — I'm not sure I believe his story.

Informal. Here buy means to believe, to accept as true.

22. I can't decide → I'm torn

I'm torn between the two apartments. — I can't choose; I like both.

Neutral. Use torn between A and B when both options have strong points.

23. it's not important → it's no big deal

I forgot my charger, but it's no big deal. I'll charge my phone at home. — It's not a problem.

Informal. The opposite, It's a big deal, means something is important or serious.

How do you describe emotions beyond happy, sad and tired?

With words that also convey the intensity and the kind of emotion. Being bummed and being fed up are very different ways of being upset.

24. very tired → wiped out / beat

I'm wiped out. I'm going to bed. / I'm beat. — Completely exhausted (estou um caco).

Both informal. Exhausted is the neutral version, fine in any situation.

25. very happy → thrilled

We're thrilled with the results. — Extremely happy and excited.

Neutral and strong. In the negative it turns into mild irony: I'm not thrilled about it means "I'm not excited about this at all."

26. sad / disappointed → bummed

I'm bummed I missed the game. — Disappointed and a little down.

Informal, very American. It also appears as bummed out.

27. irritated → fed up

I'm fed up with the noise from upstairs. — I've had enough; my patience has run out (de saco cheio).

Informal. It always takes with: fed up with something.

28. nervous → on edge

I've been on edge all day waiting for the results. — Tense and unable to relax.

Neutral. It describes tension that lasts, not a moment of nerves.

29. scared / desperate → freaked out

I freaked out when I couldn't find my passport. — I panicked.

Informal. Don't freak out means "don't panic" (não surta).

30. surprised → caught off guard

Her question caught me off guard. — Her question surprised me, and I had no answer ready.

Neutral. For surprises that leave you without a ready response.

How do you turn this list into vocabulary you actually use?

By picking a few and practicing them in sentences. Reading all 30 at once feels like learning, but by next week most of them will be gone.

1. Mark the ones you've already come across. If you've heard circle back in a meeting or bummed on a show, it will come up again.
2. Learn the sentence, not the word. Fed up on its own doesn't help much. I'm fed up with the noise already brings the preposition and the situation with it.
3. Produce, don't just recognize. Look at the meaning in your own language and try to say it in English, out loud. The reason is in I understand English but can't speak it.
4. Review before you forget. Spaced repetition brings the sentence back at the right interval.

That's the flow dailyBe follows: you look up the word or expression you don't know in the app's dictionary (phrasal verbs like circle back work too), see at least five example sentences, and add the ones that fit your life to your list. Then the app tracks each word by how often you get it right compared with how many times it has come up. Once you're getting it right consistently, it's marked as learned and makes room for the next ones. More details in How it works.

Where should you start?

Go back over the list and pick five expressions: the ones you've heard but wouldn't feel confident using. Write a sentence of your own with each one, about something that happened this week, and say it out loud. Tomorrow, without looking, try to remember all five. The ones that come easily are on their way. The ones that don't are exactly the ones you need to practice.