Look carefully at the grammar of these sentences, and you'll understand the difference: 'Job' is a COUNTABLE noun: I have a job to do. (singular with an article) My brother works in the day and in the evening - he has two jobs. (plural). There aren't many jobs for young people at the moment. 'Work' an UNCOUNTABLE noun: I have work to do/ I have some work to do. My brother does a lot of work. There isn't much work for young people at the moment. As you can see, 'work' is more abstract than 'a job' - it can't have 'a' (meaning 'one') before it, and it can't be plural. 'Vocation' is not a common word. If you are only asking about this word because you've seen it in a dictionary next to 'job' and 'work', you may as well forget about it. But if you really need to know, 'vocation' means 'calling'. It's used for certain jobs like being a teacher or a priest. These are jobs which people do not for the money, but because they feel that they are suited or even destined to do this kind of work. Not to be confused with 'vacation', which means not working.

Hi Cassie. The words "job" and "work" are all very similar in meaning, but they're used in different contexts. Here are some examples: "Do you have a job?" "I'm just doing some odd jobs around the house." "I'm going to work." "Do you have work today?" The word "vocation" is difficult because people will use it for different things. It literally means "a calling", and it is etymologically related to the word "voice". So, some people will still use it in this sense, that the career that they have chosen "calls" to them - that is, that they feel compelled to follow this career because it is right for them. However, most people will use it in the more general sense of a trade or profession. I hope that helps. Let me know if you have some more questions.

Just tried to use all three of them in one sentence, but puzzled with conditionals. Is the following correct? "I wish I had had a job with a lot of work to do for which I would have had a vocation."