Definitions

1. Adverb:

   • Certainly, surely, definitely: Used to express a high degree of certainty or affirmation about a statement.
   • Completely, entirely, fully: Used to indicate that an action or state is total, absolute, or final.

2. Particle:

   • Isn't it? / Right? / I suppose?: Used at the beginning or end of a sentence to form a rhetorical question, implying the speaker assumes the listener agrees or knows the answer.

Usage Examples

• Adverb (Certainly/Completely):

  • Việc đó hẳn là làm được. (That task certainly can be done.)
  • Bệnh của cô ấy đã khỏi hẳn. (Her illness has recovered completely.)
  • Anh ấy đã đi hẳn. (He has gone for good.)

• Particle (Rhetorical question):

  • Hẳn anh còn nhớ? (I suppose you still remember?)
  • Anh lại quên rồi hẳn? (You've forgotten again, haven't you?)

Advanced Usage

• "đã hẳn": Used to concede a point, meaning "that's true, admittedly" or "granted".

  • Việc đó khó, đã hẳn, nhưng không phải là không thể. (It's difficult, admittedly, but not impossible.)

• "không hẳn (là)": Used to express that something is "not exactly/entirely/necessarily" the case.

  • Sự thật không hẳn như thế. (The truth is not exactly like that.)

Variants and Related Words

• Chắc hẳn: A stronger compound adverb meaning "surely, undoubtedly".
  • Chắc hẳn* anh ấy sẽ đến.* (Surely he will come.)
• Hẳn hoi: An emphatic form meaning "properly, thoroughly, in a definite manner".
  • Hãy làm cho hẳn hoi. (Do it properly.)

Synonyms

• Chắc chắn (adv): Certainly, surely.
• Nhất định (adv): Definitely, for sure.
• Hoàn toàn (adv): Completely, entirely.

Related Phrases

• Đi hẳn: To leave for good, to depart permanently.

  • Họ đã đi hẳn sang nước ngoài. (They have left for good to go abroad.)

• Ở hẳn: To stay permanently.

  • Ông ấy định ở hẳn tại quê nhà. (He intends to stay permanently in his hometown.)

Notes on Usage

• When used as an adverb meaning "completely", hẳn often follows the verb or adjective it modifies.
• As a particle for rhetorical questions, it softens the question, making it less direct and more suggestive.

1. surely; certainly; completely; for good
   • đi hẳn
     to go for good