- 1a low level or point; a low figure The yen has fallen to an all-time low against the dollar. The temperature reached a record low in London last night. The government's popularity has hit a new low. difficult time
- 2a very difficult time in somebody’s life or career The break-up of her marriage marked an all-time low in her life. We all experience highs and lows in life. weather
- 3an area of low pressure in the atmosphere Another low is moving in from the Atlantic. opposite high See related entries: The Earth and the atmosphere Word Originnoun Middle English: from Old Norse lágr, of Germanic origin; related to Dutch laag, also to lie.Extra examples He had experienced all the highs and lows of an actor’s life. Morale is at an all-time low. The pound has hit a new low against the dollar.