Are the words needle bucket medicine bananas common nouns?

Let's break down the words and see if they are common nouns:

* Needle: This can be a common noun (a sharp, pointed object used for sewing or injecting) or a proper noun depending on context.

* Bucket: This is a common noun (a container with a handle, typically made of metal or plastic).

* Medicine: This is a common noun (a substance used to treat or prevent disease).

* Bananas: This is a common noun (a type of fruit).

Common nouns are general names for people, places, things, or ideas. They are not capitalized unless they are the first word of a sentence.

Proper nouns are specific names for people, places, things, or ideas. They are always capitalized.

So, in general, needle, bucket, medicine, and bananas are common nouns.