 you today this is Marc I'm doing great thanks for asking so what do these words have in common shoe lace passerby sister-in-law seat belt if you want to know the answer stay tuned because we're going to talk about compound nouns right we're going to talk about compound nouns and now is a word that names a person an animal a place an idea or a thing there can be concrete or abstract nouns a concrete noun is something that you can touch for example a table a whiteboard a house a fire an apple things that you can touch an abstract noun is for example nature love happiness their feelings ideas emotions qualities things that you cannot touch they're usually introduced with articles indefinite or definite articles for example an apple a house a computer the dog etc. also they can be to introduce with possessive adjectives like my suitcase his shirt etc. and determiners for example this glass that plant etc. I said that we're going to talk about compound nouns is a fixed expression made with more than one word so the first rule to follow is that the first part of the compound noun usually is a purpose or kind I will give you some examples later on the second part usually is who or what the stress is on the first syllable so we can't week and not weekend but week and and you can sometimes omit the second word only after mentioning it first so for example how often do you use your personal computer personal computer here is the compound now right and I can answer I use my computer every evening so I don't need to mention personal right so I just omit personal and I just mentioned per the computer don't forget that I used the in this case the possessive adjective my to identify which computer I'm talking about now some compound nouns are written with hyphens for example baby sitter and here we have a hyphen or brother-in-law here we have two hyphens and letter box these are examples and there are a lot of them others can be written with or without hyphen for example air conditioner you can write the hyphen or you can omit it living room okay with or without the hyphen some compounds that consist of more than two words are written partly with a hyphen and space for example back seat and here we have a hyphen back seat passenger no hyphen we can just add a space mother tongue speaker for example now obviously compound nouns can be countable and uncountable and I listed some countable ones blood donor here we don't need a hyphen blood donor bus stop car park uncountable ones further education so we don't say further educations but we say further education do it yourself fast food and then the toilet paper now I'm going to erase this and I'm going to show you other points about compound nouns actually I think is the most important point in this lesson right so we're back compound nouns are made of two words usually but sometimes more they're made up of noun plus noun for example house wife class mate plus room classroom etc then we have adjective plus noun for example high school old age dining room greenhouse or noun plus verb rainfall train spotting etc noun plus adverb passer by runner up or verb plus noun driving license washing machine adverb plus noun by standard for example an adjective plus verb dry cleaning so now let's recap in this lesson we talked about compound nouns but I first started by describing what a noun is a compound noun is a word made up of two or more words put together there can be noun plus noun adjective plus noun noun plus verb noun plus adverb etc just like nouns there can be countable or uncountable compound nouns well that's it for today thank you very much for watching please subscribe to my channel if you haven't subscribed yet you'll get a new lesson next week don't forget to share the lesson if you liked it and if you want you can write your own example of a compound noun under this video have a great day and see you next week take care bye bye