No, the word 'is' is not a noun, it is a verb, third person, singular present of the verb 'to be' (being, been). Example forms of the verb to be:
I am, I was
you are, you were
he is, he was
she is, she was
it is, it was
we are, we were
you are, you were
they are, they were
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.
No, "homesick" is not a common noun. It is an adjective that describes the feeling of longing for home.
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.)
Th word tail is a common noun because the first letter of a proper noun is capitalized.
The word 'mountaineering' is a noun, a common noun, a general word for an activity.
Cat is a common noun
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.
Yes, the word soap is a noun; a common, singular, concrete noun.
is the word tradition a common noun