Deadwood and Hanger-on

Deadwood noun - Discarded or useless material.

Hanger-on and deadwood are semantically related. in somebody or something unnecessary topic. In some cases you can use "Hanger-on" instead a noun "Deadwood".

Hanger-on noun - A person who is supported by or seeks support from another without making an adequate return.

Deadwood and hanger-on are semantically related. Sometimes you can use "Deadwood" instead a noun phrase "Hanger-on".