• a person or thing that takes or can take the place of another
• someone who takes the place of another (as when things get dangerous or difficult); "the star had a stand-in for dangerous scenes"; "we need extra employees for summer fill-ins"
• an athlete who plays only when another member of the team drops out
• put in the place of another; switch seemingly equivalent items; "the con artist replaced the original with a fake Rembrandt"; "Substitute regular milk with fat-free milk"
• be a Substitute; "The young teacher had to Substitute for the sick colleague"; "The skim milk Substitutes for cream--we are on a strict diet"
• act as a Substitute; "She stood in for the soprano who suffered from a cold"
• artificial and inferior; "ersatz coffee"; "Substitute coffee"

'Substitute' in other languages