1torch 
/ˈtoɚtʃ/ noun
plural torch·es /ˈtoɚtʃ/ noun [count] 1 : a long stick with material at one end that burns brightly
▪ the Olympic torch — often used figuratively ▪ the torch of truth/hope 2 : blowtorch 3 Brit : flashlight
▪ the Olympic torch — often used figuratively ▪ the torch of truth/hope
carry a torch
: to continue to have romantic feelings for someone who does not love you — usually + for ▪ Is she still carrying a torch for him after all this time?
carry the torch
: to support or promote a cause in an enthusiastic way
▪ His children continue to carry the torch [=crusade] for justice.
▪ His children continue to carry the torch [=crusade] for justice.
pass the torch
chiefly US ◊If you pass the torch (on) or pass on the torch, you give your job, duties, etc., to another person.
▪ He is retiring and passing the torch on to his successor. ▪ She says she's ready to pass the torch.
▪ He is retiring and passing the torch on to his successor. ▪ She says she's ready to pass the torch.
