no
The noun peacock is a common noun unless used as the name of a specific name or title such as Peacock Lane in Portland OR, or Peacock Park in Miami FL.
Yes, the noun 'porch' is a common noun, a general word for any porch of any kind.A proper noun is the name of a specific person, place, or thing; for example:Porch Street, Portland, MEPorch Light Productions (theater group), Glen Rock, NJBack Porch Cafe, Watertown, TN"porch" is a regular noun
No, the plural noun 'elephants' is a common noun, a general word for a type of animal(s).A proper noun is the name of a specific person, place, or thing; for example, Elephants Delicatessen in Portland OR or Elephants Foot Trail, Bald Head Island NC.
Yes, the noun 'orchestra' is a common noun, a general word for any orchestra anywhere.A proper noun is the name of a specific person, place, thing, or a title; for example:The Chicago Symphony OrchestraOrchestra Drive, Winston-Salem, NCOrchestra brand clothing, China and Hong KongOrchestra LLC (software applications), Portland, OR
Concrete is the collective noun for water, Portland Cement, aggregates and air.
Common noun
Yes, the noun tails is a common noun, a plural for for the noun tail; a word for any tail of any thing.A proper noun is the name of a person, place, thing, or a title; for example:Tails & Trotters, pork wholesaler, Portland, ORTails By the Lake, pet store, Olympic Valley, CATails Creek Road, Ellijay, GA'Red Tails', (movie 2012) with Cuba Gooding, Jr.
common
Pea is a common noun, and peas is the plural...still a common noun.
A common noun.
Most definitely a common noun.
Camel is a common noun.