English Expression · Intermediate
clock calm
The condition of a perfectly flat sea with no waves and no wind
Pronunciation: say clock calm
Meaning
The condition of a perfectly flat sea with no waves and no wind.
Example
The ocean was in a state of clock calm, reflecting the sky like a mirror.
The ocean was in a state of clock calm, reflecting the sky like a mirror.
Practice tips
- Practice clock calm out loud — read the pronunciation guide above and repeat.
- Use it in your own sentence today; reuse beats rereading.
- Pay attention to context: this English expression is for intermediate-level learners.