‘replacement of’ or ‘replacement for’

Should you say ‘replacement of’ or ‘replacement for’?

There are two commonly used meanings of the word ‘replacement’:

1. a person or a thing that replaces another; a substitute.
2. The action or an act of replacing something.

When used in the first sense, use ‘for’.
Example: We need a replacement for Mr Seth, who will retire next month.

When used in the second sense, use ‘of.’
Example: The surgeon is suggesting a replacement of the hip joint with artificial parts.