Definitions

1. Verb:
   • To bar; to bolt the door: The action of securing a door by sliding a bolt or bar into place to prevent it from being opened from the outside.

Usage Examples

• Verb:
  • Trời tối rồi, nhớ cài cửa trước khi đi ngủ. (It's dark now, remember to bolt the door before going to sleep.)
  • Anh ấy cẩn thận cài cửa mỗi khi ra ngoài. (He carefully bars the door whenever he goes out.)

Advanced Usage

• "cài cửa cẩn thận": to bolt the door carefully/securely.
  • Cô ấy luôn cài cửa cẩn thận vì sống một mình. (She always bolts the door securely because she lives alone.)

Variants and Related Words

• Cài then (verb): to latch; to fasten with a latch. This is a near-synonym, often referring to using a specific type of wooden or metal latch.
  • Cài then cửa lại cho chắc. (Latch the door firmly.)

Synonyms

• Đóng then: to latch.
• Chốt cửa: to bolt/lock the door.

Related Phrases (Phrasal Verbs)

• Cài then cài cửa (idiomatic phrase): to secure doors and latches; implies taking thorough security measures for one's home.
  • Trước khi đi xa, họ cài then cài cửa cẩn thận. (Before traveling far, they secured all the doors and latches carefully.)

Related Idioms

• "Kín như cài then": (lit. "tight as a latched door") meaning very secretive, airtight, or impenetrable.
  • Kế hoạch của họ kín như cài then. (Their plan is airtight.)

verb

1. to bar ; to bolt the door