common and proper noun Quiz
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10 free Common and Proper Noun trivia questions with answers — trivia quiz, new questions added Oct 2026.
Here's a fact that trips up most people: the word "internet" used to be capitalized as a proper noun, but style guides quietly downgraded it to lowercase. Proper nouns are trickier than they seem. See if you can master the rules in 10 questions.
All 10 questions with answers and explanations. Play the quiz
Q 01Which celestial body is a proper noun when referring to a specific planet, but a common noun otherwise?
Earth
"Earth" is capitalized when referring to our planet, but "earth" can be a common noun meaning soil or ground.
Q 02Which word functions as a common noun, referring to a general type of building?
Skyscraper
A skyscraper is a very tall building, while the other options are specific, named structures.
Q 03Which common noun becomes part of a proper noun when referring to a specific body of water?
River
While "river" is a common noun, it is capitalized when part of a name like "Mississippi River."
Q 04Which type of noun names a group of people, animals, or things as a single unit?
Collective noun
Examples of collective nouns include "flock" for birds or "team" for players.
Q 05Which word is a common noun, referring to a general geographical feature?
Mountain
A "mountain" is a general landform, whereas the other options name specific mountains or ranges.
Q 06Which word can be either a common noun or a proper noun depending on its usage?
School
The word "school" is a common noun, but when part of a specific institution's name, like "Harvard School," it becomes a proper noun.
Q 07Which word is a common noun, referring to a general type of animal?
Cat
"Cat" refers to the general species, while the other options are specific names given to individual animals.
Q 08Which family relation can be a proper noun when used as a name or title?
Grandma
Words like "Grandma" or "Dad" are capitalized and become proper nouns when used as a direct address or specific title.
Q 09Which key feature distinguishes a proper noun from a common noun?
Capitalization
Capitalization: Proper nouns always begin with a capital letter, even when they appear in the middle of a sentence.
Q 10Which term identifies a specific spoken or written communication system and is always a proper noun?
English
Names of languages, like "English," "Spanish," or "French," are always capitalized as proper nouns.