The playground is very dirty
Well one word for sure would be dirty, because hidden in the text he write very dirty things and you have a great eye if you can point them out.
A dirty coin
NO. It isn't a dirty word??? how could that even be thought of as one.
His shirt was dirty after he spilled most of his lunch on it. Sarah has very dirty and sexual thoughts about her boyfriend.
Your word is: "Rusty" !
"Dirty" is usually an adjective, and as such it modifies one or more nouns. It can also be used as a transitive verb: "Don't dirty your clothes!"
dirty
The word "dirty" is generally an adjective, and it describes a noun: there are dirty dishes in the sink. But it can also be a verb: to dirty (something), although it's not very common. If you are using it as a verb, the past tense would be "dirtied." The children dirtied the room, and we had to clean it up.
BAD WORD meaning dirty sex or sex with low-life people. Also used by very ignorant persons who are calling others very dirty names.
The word pigsty is a noun, and is slang for "a very dirty or untidy place."Your room is a pigsty!
Dirty