Second fiddle and Third string

Second fiddle noun - A secondary role or function.

Third string and second fiddle are semantically related In some cases you can use "Third string" instead the phrase "Second fiddle" as an adjective or a noun.

Second fiddle and third string are semantically related in imperfect topic. You can use "Second fiddle" instead the phrase "Third string" as a noun or an adjective, if it concerns topics such as person that serves another.