Noun
-
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"
- stand in - backup man - fill in -
an athlete who plays only when a starter on the team is replaced
- second stringer -
a person or thing that takes or can take the place of another
Verb
-
act as a substitute
"She stood in for the soprano who suffered from a cold"
- step in -
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"
- stand in - fill in -
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"
"synonyms can be interchanged without a changing the context's meaning"
Adjective
-
artificial and inferior
"ersatz coffee"
"substitute coffee"
-
serving or used in place of another
"an alternative plan"
-
capable of substituting in any of several positions on a team
"a utility infielder"