Fellow worker and Hanger-on

Fellow worker noun - An associate that one works with.

Hanger-on and fellow worker are semantically related. in follower topic. In some cases you can use "Hanger-on" instead a noun phrase "Fellow worker".

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

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