sense (good sense/judgement) – el juicio

(Pronounced hoo-ee-thee-yoh)

To remember that sense is pronounced hoo-ee-thee-yoh (juicio) in European Spanish, use the following mnemonic:

Having good sense and judgement to avoid the hooligan, he hid behind the oak (juicio) tree.

Juicio is masculine, so it's el juicio. Imagine an elephant using good common sense.