Tra từ might - Từ điển Oxford Advanced Learner 8th

might modal verb, noun BrE [maɪt] NAmE [maɪt]
modal verb (negative might not, short form mightn'tBrE [ˈmaɪtnt] ; NAmE [ˈmaɪtnt] )
1. used as the past tense of may when reporting what sb has said
• He said he might come tomorrow.
2. used when showing that sth is or was possible
• He might get there in time, but I can't be sure.
• I know Vicky doesn't like the job, but I mightn't find it too bad.
•The pills might have helped him, if only he'd taken them regularly.
•He might say that now (= it is true that he does), but he can soon change his mind.
3. used to make a polite suggestion
• You might try calling the help desk.
• I thought we might go to the zoo on Saturday.
4. (BrE)used to ask permission politely
• Might I use your phone?
•If I might just say something…
5. (formal)used to ask for information
• How might the plans be improved upon?
• And who might she be?
6. used to show that you are annoyed about sth that sb could do or could have done
• I think you might at least offer to help!
• Honestly, you might have told me!
7. used to say that you are not surprised by sth
•I might have guessed it was you!
8. used to emphasize that an important point has been made
•‘And where is the money coming from?’ ‘You might well ask!’
see may/might as well at ↑well

Word Origin:
n. Old English miht, mieht, of Germanic origin; related to the verb ↑may.

Grammar Point:
modal verbs
The modal verbs are can, could, may, might, must, ought to, shall, should, will and would. Dare, need, have to and used to also share some of the features of modal verbs.
Modal verbs have only one form. They have no -ing or -ed forms and do not add -s to the 3rd person singular form: ▪ He can speak three languages. ◇ ▪ She will try and visit tomorrow.
Modal verbs are followed by the infinitive of another verb without to. The exceptions are ought to and used to: ▪ You must find a job. ◇ ▪ You ought to stop smoking. ◇ ▪ I used to smoke but I gave up two years ago.
Questions are formed without do/does in the present, or did in the past: ▪ Can I invite Mary? ◇ ▪ Should I have invited Mary?
Negative sentences are formed with not or the short form -n’t and do not use do/does or did.
You will find more help with how to use modal verbs at the dictionary entries for each verb.
Idiom: ↑might is right

noun uncountable (formal or literary)
great strength, energy or power
•America's military might
• I pushed the rock with all my might.

Word Origin:
[might] n. Old English miht, mieht, of Germanic origin; related to the verb ↑may.

Example Bank:
•He pushed against the rock with all his might.