Tra từ just - Từ điển Oxford Advanced Learner 8th

just adverb, adjective BrE [dʒʌst] NAmE [dʒʌst]
adverb
1. exactly
• This jacket is just my size.
• This gadget is just the thing for getting those nails out.
•Just my luck (= the sort of bad luck I usually have). The phone's not working.
•You're just in time.
•~ like… She looks just like her mother.
•~ what… It's just what I wanted!
•~ as… It's just as I thought.
• (BrE)It's just on six (= exactly six o'clock).
2. ~ as… at the same moment as
• The clock struck six just as I arrived.
3. ~ as good, nice, easily, etc. no less than; equally
• She's just as smart as her sister.
• You can get there just as cheaply by plane.
4. (only) ~ | ~ after, before, under, etc. sth by a small amount
• I got here just after nine.
• I only just caught the train.
•Inflation fell to just over 4 per cent.
5. used to say that you/sb did sth very recently
• I've just heard the news.
• When you arrived he had only just left.
•She has just been telling us about her trip to Rome.
• (especially NAmE)I just saw him a moment ago.
6. at this/that moment; now
• I'm just finishing my book.
• I was just beginning to enjoy myself when we had to leave.
•I'm just off (= I am leaving now).
7. ~ about/going to do sth going to do sth only a few moments from now or then
• The water's just about to boil.
• I was just going to tell you when you interrupted.
8. simply
• It was just an ordinary day.
• I can't just drop all my commitments.
•This essay is just not good enough.
•I didn't mean to upset you. It's just that I had to tell somebody.
•This is not just another disaster movie— it's a masterpiece.
•Just because you're older than me doesn't mean you know everything.
9. only
•~ (for sth) I decided to learn Japanese just for fun.
•~ (to do sth) I waited an hour just to see you.
•There is just one method that might work.
•‘Can I help you?’ ‘No thanks, I'm just looking.’ (= in a shop/store)
10. (informal)really; completely
•The food was just wonderful!
•I can just imagine his reaction.
11. used in orders to get sb's attention, give permission, etc.
•Just listen to what I'm saying, will you!
•Just help yourselves.
12. used to make a polite request, excuse, etc.
•Could you just help me with this box, please?
•I've just got a few things to do first.
13. could/might/may ~ used to show a slight possibility that sth is true or will happen
•Try his home number— he might just be there.
14. used to agree with sb
•‘He's very pompous.’ ‘Isn't he just?’
more at (just) in case at ↑case _n., just the job at ↑job

Word Origin:
late Middle English: via Old French from Latin justus, from jus ‘law, right’.

British/American:
already / just / yet
Already and yet are usually used with the present perfect tense, but in NAmE they can also be used with the simple past tense: ▪ I already did it. ◇ ▪ Did you eat yet?
However, this is much more common in spoken than in written English and some Americans do not consider it acceptable, even in speech. The present perfect is more common in NAmE and almost always used in BrE: ▪ I’ve already done it. ◇ ▪ Have you eaten yet?
Just is mostly used with the perfect tenses in BrE and with the simple past in NAmE: ▪ I’ve just had some bad news. (BrE) ◇ ▪ I just got some bad news. (NAmE)
Idioms: ↑I would just as soon do something ▪ ↑could just as well … ▪ ↑it is just as well ▪ ↑just a minute ▪ ↑just about ▪ ↑just like that ▪ ↑just now ▪ ↑just so ▪ ↑just then ▪ ↑not just yet
Derived Word: ↑justly

adjective usually before noun
1. that most people consider to be morally fair and reasonable
Syn: ↑fair
•a just decision/law/society
2. the justnoun plural people who are just
3. appropriate in a particular situation
•a just reward/punishment
•I think she got her just deserts (= what she deserved).
Opp: ↑unjust

Word Origin:
[just justly] late Middle English: via Old French from Latin justus, from jus ‘law, right’.

Example Bank:
•I think it was a just decision.
•Of course we all strive for a just and humane society.
•The law must be seen to be just.
•They're campaigning for a just settlement.