reduce

verb
UK /rɪˈdjuːs/
US /rɪˈduːs/

To make something smaller or less.

We need to reduce the amount of sugar we eat.


OTHER MEANINGS

2. To bring something to a certain state or condition.

The fire reduced the house to ashes.

3. To change a fraction or amount into a simpler form.

You can reduce 4/8 to 1/2.

4. To boil a liquid until there is less of it.

Reduce the sauce by simmering it for ten minutes.

5. To make someone lower in rank or position.

The officer was reduced to the rank of private.