holiday = vacation. We use holiday in the UK. Vacation is used in N America. For "raw", check a monolingual dictionary. There is more than one meaning.

The difference between 'holiday' and 'vacation' is mainly an issue relating to American English. It confuses speakers and learners of English from elsewhere because for many people - including speakers of British English - the concept is the same. In American English, word 'holiday' refers to a celebratory day or period, such as Christmas and New Year. It is roughly equivalent to the concept in other European languages of 'les fêtes' (French), 'le feste' (Italian) and so on. Meanwhile, 'vacation' is used in American English to refer to a 'break' from school or work for the purpose of relaxation. This is usually ( but not always) in the summer, and is an opportunity to go away with friends and family, and travel to the beach, the mountains, or wherever you want to go to relax. In British English, the word 'vacation' is very rarely used. British English uses 'holiday' and 'holidays' for both of the concepts above. For example, if an AmE speaker takes a week off work to go skiing, he would say he was 'on vacation', while a BrE speaker in the same situation would say he was 'on holiday'.

see my answer which i accidentally wrote as a response to the other user's response.

Holiday - it's about a special day. For example: your city's birthday, Christmas. Vacation - it's about a month. You don't work for a month and the company pays for you more money. In this month, you relax, only having fun, travel... The students of a course, first and second degree and University also have vacation. Raw - I know three meanings: uncooked food, rude person and unskilled person. I hope it helps!!!