Whereby – by which

(Pronounced wair-buy)

To remember the definition of the word whereby, use the following mnemonic:

Wear clothes by (whereby) our leading designer, by which we mean the witch.

Examples of whereby in a sentence

She thought of a new plan whereby all three parties would benefit. 

Allen wants to find a position whereby he works during the night hours and sleeps during the day.

Because hurricanes are a disaster whereby lots of flooding can occur, the city is preparing for extreme rises in water.