Common Nouns:
General categories:
* People: child, woman, man, teacher, doctor, friend
* Places: city, country, park, river, ocean, building, room
* Things: chair, table, book, computer, phone, car, food, water, air
* Concepts: happiness, love, freedom, justice, time, beauty
Specific examples:
* Animals: dog, cat, bird, fish, insect, reptile
* Food: apple, pizza, bread, cake, ice cream, coffee
* Clothing: shirt, pants, shoes, dress, coat, hat
* Technology: laptop, smartphone, tablet, internet, camera
Proper Nouns:
Specific people, places, and things:
* People: John, Mary, President Biden, Oprah Winfrey, Shakespeare
* Places: New York City, Eiffel Tower, Mount Everest, Amazon River, Pacific Ocean
* Things: iPhone, Toyota Camry, Mona Lisa, Star Wars, Harry Potter, Earth
Organizations and institutions:
* Companies: Google, Apple, Amazon, Microsoft
* Schools: Harvard University, Oxford University, MIT
* Organizations: United Nations, Red Cross, World Health Organization
Days, months, holidays:
* Days: Monday, Tuesday, Wednesday, Thursday, Friday, Saturday, Sunday
* Months: January, February, March, April, May, June, July, August, September, October, November, December
* Holidays: Christmas, Thanksgiving, Easter, Hanukkah
Note: Proper nouns are always capitalized, while common nouns are not, unless they are the first word of a sentence.