(=thing) substitut m , succédané m
→ It's just a hobby, something I wouldn't miss much if I found a substitute.
a substitute for sth un substitut de qch
→ You can use sunflower oil as a substitute for olive oil, but it doesn't taste as good.
a sugar substitute un substitut du sucre
→ It may replace saccharin as a sugar substitute.
→ efforts to find a blood substitute made from animal blood
to be no substitute for sth ne pas remplacer qch
→ Inspiration is no substitute for solid hard work.
→ The printed word is no substitute for personal discussion with a great thinker.
there is no substitute for ... rien ne remplace ...
→ There is no substitute for practical experience.
→ Giving money helps, but there really is no substitute for giving your time.