Replacement is a term used to describe the act of exchanging one thing for another. EXCHANGE (8 letters) is a synonym for replacement, as it means to give or take one thing in return for another. MAKESHIFT (9 letters) is another word for replacement, as it refers to something that is done or used temporarily as a SUBSTITUTE. DEPUTY (6 letters) is another term for replacement, as it means a person who acts as a SUBSTITUTE for someone else. ALTERNATIVE (11 letters) and ALTERNATE (9 letters) are also synonyms for replacement, as they refer to a choice between two or more things. CONVERSION (10 letters) is another word for replacement, as it means to change from one form to another. SWITCH (6 letters) is another term for replacement, as it means to EXCHANGE one thing for another. SUCCESSOR (9 letters) is another word for replacement, as it means a person or thing that follows another. SUB (3 letters), SUBSTITUTE (10 letters), REF (3 letters), and sparepart (9 letters) are all other words for replacement, as they refer to a person or thing that takes the place of another.