Definitions

1. noun

A substance, such as yeast, used to cause dough to rise; a small amount added to something to improve or change it.

“The baker added a pinch of leaven to the bread dough to give it a light texture.”

2. transitive verb

To cause something to rise or become lighter; to make something more pleasant or interesting.

“The new policy will leaven the atmosphere at work, making it a more enjoyable place to be.”

3. transitive verb

To remove or get rid of something unpleasant or unwanted.

“The new management will leaven the company of its corrupt practices.”

4. intransitive verb

To become or cause something to become lighter or more pleasant.

“As the sun came out, the mood began to leaven.”