replacement-n; 3 Senses

Sense Number 1: the act of substituting one thing for another

Commentary: REPLACEMENT[+event][+substitution]
NOTE: implies X is substituted for Y

John's mother is having a hip replacement.
What is the replacement cost of this window?
The replacement of religious dogma by scientific methods was a hallmark of the Enlightenment.
Many chefs ordered a replacement of spinach with other greens after the recent scare.

PropBank: replacement.01
WordNet 3.0 Sense Numbers: 1

Sense Number 2: the act of replenishing or refilling a depleted resource

Commentary: REPLACEMENT[+action][+replenish]
NOTE: implies a replenishing -not- a switch (Sense 1)

The regular replacement of fluids in the body is essential to life.
The bank dropped charges after the replacement of the stolen funds.
We carefully watched the magician's replacement of the cup onto the table.

PropBank: replacement.01
WordNet 3.0 Sense Numbers: 3, 5

Sense Number 3: a person or thing substituting for another person or thing

Commentary: REPLACEMENT[+relation][+role][+substitute][+entity]
NOTE: refers to a thing or person that -is- the substitute or surrogate

Who is Mary's replacement in marketing while she is on vacation?
There is no replacement for really good dark chocolate.
These replacement parts from the factory seem of poorer quality.
Mary ordered replacements of her flatware on the Internet.
The sommelier actually tried to convince us that the '87 Syrah was a reasonable replacement for the '82 Margaux!

PropBank: replacement.01
WordNet 3.0 Sense Numbers: 2, 4, 6