Menial and Second string

Menial adjective - Showing, expressing, or offered in a spirit of humility or unseemly submissiveness.

Second string and menial are semantically related. In some cases you can replace phrase "Second string" with "Menial", this terms are similar.

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.

Menial and second string are semantically related. Sometimes you can use "Menial" instead an adjective phrase "Second string".