Letters that make fill-in
f, l, n, i are letters that make 'fill-in'
1 possible definitions for 'fill-in'
Under this definition, fill-in is a noun and has the following properties:
stand-in, backup man, substitute, relief, backup, reliever have the same meaning as 'fill-in'
locum tenens, locum, stunt man, stunt woman, alternate, replacement, surrogate, double are types of 'fill-in'.
substitute, take over, stand in, deputize, deputise, step in, relieve, sub, fill in, alternative, alternate are derivatives of 'fill-in'.
"the star had a stand-in for dangerous scenes", "we need extra employees for summer fill-ins"