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Battre son plein

Meaning: To be in full swing.

Language: French

Literally: To be at its full

Category: Daily Life

Origin: Son here is the possessive, and plein is the full tide — the sea beating at its own high water. It is regularly misanalyzed as son meaning sound, which produces confident but wrong explanations.

More idioms — Daily Life

  • Péter les plombs — To lose one's temper completely.
  • Faire le point — To take stock of where things stand.
  • Pomme de discorde — The particular thing two parties are fighting over.
  • En grande pompe — With elaborate ceremony.
  • Comme le Pont-Neuf — In excellent shape despite considerable age.
  • Enfoncer une porte ouverte — To make a great effort to establish something nobody disputes.

More French idioms

  • La portion congrue — A bare minimum, grudgingly given.
  • Saoul comme un Polonais — Extremely drunk.
  • Défendre son pré carré — To protect one's own territory or area of authority.
  • Lâcher la proie pour l'ombre — To give up something real in pursuit of something illusory.
  • Nul n'est prophète en son pays — Recognition is hardest to win from the people who know you.
  • Une victoire à la Pyrrhus — A win whose cost makes it indistinguishable from defeat.

From our tongue twisters

  • Un beau ver vert dans un verre vert verra un ver vert. — Ver (worm), vert (green), and verre (glass) are near-homophones — distinguishing them at…
  • Didon dîna, dit-on, du dos d'un dodu dindon dont le dodu dos dodine. — A 'd' / 'din' / 'dod' avalanche that seems designed to jam the tongue in third gear.
  • Un chasseur sachant chasser doit savoir chasser sans son chien. — The classic French 'ch' / 's' tangler.

Browse all tongue twisters →

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