Sail is a noun and a verb.
Yes, the noun 'sail' is a common noun; a general word for a piece of fabric raised to catch the wind to propel a boat or ship; a general word for a trip or a voyage on a boat or a ship; a word for any sail of any kind.The word 'sail' is also a verb: sail, sails, sailing, sailed.
Yes, the word noise is a common noun.
The word bicycle is a common noun.
The noun 'magazine' is a singular, common, concrete noun, a word for a thing.
My brother ate a cake. (The words 'brother' and 'cake' are common nouns.)I went to the supermarket. (The word 'supermarket is a common noun.)I like to eat cookies. (The word 'cookies' is a common noun.)I accidentally dropped my computer.(The word 'computer' is a common noun.)He likes to read books. (The word 'books' is a common noun.)She likes playing toys. (The word 'toys' is a common noun.)I like going to the gym. (The word 'gym' is a common noun.)She bought a pen. (The word 'pen' is a common noun.)I am doing my homework. (The word 'homework' is a common noun.)I am drawing a picture. (The word 'picture' is a common noun.)I am carrying my bag. (The word 'bag is a common noun.)The train will leave soon. (The word 'train' is a common noun.)I am eating breakfast. (The word 'breakfast' is a common noun.)I found a dog just now. (The word 'dog' is a common noun.)He sold his home. (The word 'home' is a common noun.)His friend fell sick. (The word 'friend' is a common noun.)I went to the airport. (The word 'airport is a common noun.)His bed is very messy. (The word 'bed' is a common noun.)I saw a baby just now. (The word 'baby' is a common noun.)The door was open. (The word 'door' is a common noun.)
The word 'mountaineering' is a noun, a common noun, a general word for an activity.
Th word tail is a common noun because the first letter of a proper noun is capitalized.
Cat is a common noun
Yes, the noun 'sail' is a common noun, a general word for a sheet of fabric attached to a mast or pole used to catch the wind to propel a a boat or ship over the water or ice; a general word for something resembling such a sheet of fabric in form or function; a general word for a trip taken on a boat or a ship; a word for any sail of any kind.A common noun is capitalized only when it's the first word in a sentence.The word 'sail' is also a verb: sail, sails, sailing, sailed.
Yes, the word spirit is a common noun, a singular, abstract, common noun.
Yes, the word 'friendship' is a noun; a singular, common, abstract noun; a word for an emotional relationship between people; a word for a thing.