Q: know/say for certain とはどういう意味ですか?
A: Say something with confidence. You know you're 100% right and there is no way you are wrong.
Q: certain とはどういう意味ですか?
A: It has two meanings:
When it goes before a noun:
A certain man
A certain cat
A certain religion prohibits this.
It means “SPECIFIC”
when you want to refer to a specific item/person/animal

Certain after the noun
Are you certain?
Is that boy certain?
I am certain that he did it.
Certain means “sure”
Knowing 100%
People usually use “sure” instead
Q: certain とはどういう意味ですか?
A: it means you are sure that something is going to happen.
Example: I'm certain that she is going to sleep.
Q: I'm fairly certain that... とはどういう意味ですか?
A: All great...it also means there is a slight possibility I am wrong. Or it also leaves a little wiggle room for descent.
Q: "certain" in 394 とはどういう意味ですか?
A: In this case 'certain' means particular or specific; not all young people, but particular individuals.


Q: certain を使った例文を教えて下さい。
A: "I'm certain."
"He wasn't certain."
"There's nothing certain."
"I'm certain something wrong."
"I'm certainly not going to let you get away with that."
Q: certain を使った例文を教えて下さい。
A: “I am certain I locked the door before I left.”

“Certain students need a little more help and attention in class.”

Q: for certain を使った例文を教えて下さい。
A: A: “The store ran out of apples”
B: “Are you certain?”

A: “can you help me with my homework?”
B: “yes, certainly!”

“There are certain things that you should not say.”
(This meaning of “certain” is different than before)
Q: certain and certainly を使った例文を教えて下さい。
A: "Only certain people can become doctors." "You can certainly leave with your friend."
Q: certain を使った例文を教えて下さい。
A: 1. I'm certain she'll go to school tomorrow. 2. It's certain that he'll be there. 3. I'm certain that everything will be okay. 4. I feel certain of it. 5. He was certain he got the answer right. 6. They choose certain people for difficult jobs. 7. It takes a certain kind of person to fall in love with. 8. You need a certain kind of oil for most recipes.


Q: certain と particular はどう違いますか?
Yeah, they both make sense and have similar meanings. In the way your using the two words they can both be used.
Although in my opinion, I prefer the second one! ^^
Q: for certain と for sure はどう違いますか?
A: @Yukiyuki1 meaning is the same but for sure is more commonly used whereas certain is less used in spoken language
Q: certain と sure はどう違いますか?
A: certain has two meanings.
1. sure
2. specific
so I'm guessing you are talking about the first meaning of certain.

I think there's not much difference. Certain is just used in more formal conversations while sure sounds very informal.

and one more difference which I think but not SURE of is:
When asking a question- "are you sure?" it sounds natural to use 'sure' but very very unnatural to use 'certain'
Q: not certain と uncertain はどう違いますか?
A: I don't want say it's true 100% of the time. But generally, it does sound more formal to me.

"I was unaware."


Q: certain は 英語 (アメリカ) で何と言いますか?
A: QAの全文をご確認ください
Q: certain は 英語 (アメリカ) で何と言いますか?
A: Cer-tain. It will sound like 'cer-ten' though.
Q: certain は 英語 (アメリカ) で何と言いますか?
A: QAの全文をご確認ください
Q: certain は 英語 (アメリカ) で何と言いますか?
A: QAの全文をご確認ください
Q: certain は 英語 (アメリカ) で何と言いますか?


Q: certainの発音を音声で教えてください。
A: QAの全文をご確認ください
Q: certainの発音を音声で教えてください。
A: you are correct. Different people tend to pronounce it differently. And we will often not pronounce the T as strong if we are speaking quickly.
Q: certain, certainlyの発音を音声で教えてください。
A: QAの全文をご確認ください
Q: certainの発音を音声で教えてください。
A: QAの全文をご確認ください
Q: certainの発音を音声で教えてください。
A: QAの全文をご確認ください