khóa

khóa

Học sinh dùng chìa khóa để mở cửa phòng học.

Definition

  1. Noun:

    • Lock: A device, typically made of metal, used to fasten doors, cabinets, chests, etc., to prevent them from being opened without a key.
    • Buckle, clasp, fastener: A device made of metal or plastic used to secure a belt, sandal strap, bag opening, etc., to prevent it from coming undone.
    • Key (in cryptography): The complete set of rules or algorithms for a cipher or code.
    • Clef (in music): A symbol placed at the beginning of a musical staff to indicate the pitch of the notes.

  2. Verb:

    • To lock: To fasten or secure something with a lock.
    • To lock up, to restrain: To hold a part of someone's body tightly so it cannot move.
    • To shut off, to block: To close or seal a passage, exit, or supply (e.g., water).

  3. Noun:

    • Term, period, session: A fixed period for an official term, military service (historically), a course of study, or a parliamentary session.
    • (Archaic): A meeting session. A contraction of "khoá sinh" (a term for a student or scholar in the past).
Usage Examples

  • Noun:

    • Tôi đã mất chìa khóa. (I lost the key.)
    • Anh ấy mua một cái khóa thắt lưng mới. (He bought a new belt buckle.)
    • Bản nhạc này được viết ở khóa Fa. (This piece of music is written in the F clef.)

  • Verb:

    • Hãy khóa cửa trước khi đi ngủ. (Lock the door before going to sleep.)
    • Cảnh sát khóa tay tên tội phạm. (The police locked the criminal's hands.)
    • Họ phải khóa van nước vì có rò rỉ. (They had to shut off the water valve because of a leak.)

  • Noun (Term/Period):

    • Cha tôi là lính mãn khóa năm 1975. (My father completed his military service term in 1975.)
    • Chúng tôi là bạn cùng khóa đại học. (We are university classmates from the same cohort.)
Advanced Usage

  • "khóa học": A course, a program of study.

    • Cô ấy đang tham gia một khóa học tiếng Anh cấp tốc. (She is taking an intensive English course.)

  • "khóa chặt": To lock tightly, to secure firmly.

    • Anh ta khóa chặt cửa sổ vì trời gió. (He locked the window tightly because it was windy.)
Variants and Related Words

  • Ổ khóa (n): Lock (referring to the lock mechanism itself).

    • Ổ khóa này rất kiên cố. (This lock mechanism is very sturdy.)

  • Khóa ngoài (v): To lock out.

    • Tôi bị khóa ngoài vì quên chìa khóa. (I was locked out because I forgot my key.)

  • Khóa luận (n): Thesis, dissertation (for a degree course).

    • Cô ấy đang viết khóa luận tốt nghiệp. (She is writing her graduation thesis.)
Synonyms
  • Lock (n): fastener, padlock.
  • To lock (v): to bolt, to secure.
  • Term (n): session, cohort, class.
Related Idioms

  • "Khóa mồm khóa miệng": To silence someone, to prevent someone from speaking.

    • Họ cố gắng khóa mồm khóa miệng nhân chứng. (They tried to silence the witness.)

  • "Mãn khóa": To complete a term of service or study.

    • Sinh viên sẽ được cấp bằng sau khi mãn khóa. (Students will be awarded a degree upon completion of the course.)