substitute [^|sʌbstɪtu:t] 

1. (다른 누구・무엇을) 대신하는 사람[것], 대리자; 대용물[품], 대체물

2. (비격식 sub) 교체 선수

Lars Bender of Germany comes on as a substitute for Toni Kroos of Germany during the EURO 2016 Group D Qualifier match between Germany and Gibraltar at Grundig Stadion on November 14, 2014 in Nuremberg, Germany.

What can I substitute for a guitar capo?