Learn English idioms with meanings and examples

🌎Region: International 📊Difficulty Level:intermediate

hang by a thread

To be in a very dangerous or uncertain situation, close to failing, ending, or collapsing.

From the literal image of something suspended by a single thin thread—so weak that it could snap at any moment—used figuratively for peril or uncertainty; related imagery appears in classical literature such as the “sword of Damocles.”

Often dramatic: suggests something is barely surviving and could fail suddenly. Used for lives, plans, relationships, finances, negotiations.

  • After the last round of layoffs, her job was hanging by a thread.
  • The peace agreement is hanging by a thread after yesterday’s border clash.
  • With the engine smoking and the fuel gauge on empty, our road trip was hanging by a thread.
  • His reputation is hanging by a thread following the corruption allegations.
  • The old bridge has been hanging by a thread for years, and one more storm could bring it down.

Usually used as “be hanging by a thread” or “hangs/hung by a thread.” Common patterns: “X is hanging by a thread” (state) and “X hangs by a thread” (general). Can take modifiers like “still/just/barely.”

  • be on the brink
  • be in jeopardy
  • be in the balance
  • be on the edge
  • teeter on the brink
  • be on solid ground
  • be secure
  • be safe
  • be stable