The word "weed" is a common noun. It is any undesirable plant, especially a plant that grows where desirable plants have been planted.
Weed.
The plural of weed is weeds like the show on Showtime "Weeds".
Common
Common noun
common
Pea is a common noun, and peas is the plural...still a common noun.
A common noun.
The word weed is a noun, a verb, or an adjective. Example uses: Noun: A weed is not always a menace, my mother made a great dandelion salad. Verb: I have to weed the garden before that's all that grows there. Adjective: Get a bottle of weed spray while you're at the garden shop.
Most definitely a common noun.
Camel is a common noun.
Th word tail is a common noun because the first letter of a proper noun is capitalized.