Avocation is a noun that refers to ‘a hobby.’
You may recognize the word ‘vocation’ — a synonym of ‘career’ — in our word of the day. This word evolved from the Latin vocare (vo CAR ay) which means ‘call’ as in ‘a calling.’ The addition of the prefix A gives us a word that means ‘a calling away’ from one career.
My dad always felt it was important to have an avocation to be a well-rounded person. In his view, there was nothing more boring than a person who has nothing to talk about except work.