Second string and Second-banana

Second string noun - A squad of players that are available either individually or as a team to relieve or replace the players who started the game.

Second-banana and second string are semantically related In some cases you can use "Second-banana" instead an adjective phrase "Second string".

Second string and second-banana are semantically related in sidekick topic. You can use "Second string" instead a noun phrase "Second-banana".