1 put back in place.
2 take the place of; succeed; be substituted for.
3 find or provide a substitute for.
4 (often foll. by with, by) fill up the place of.
5 (in passive, often foll. by by) be succeeded or have one's place filled by another; be superseded.
Derivatives:
replaceable adj. replacer n.
Useful english dictionary. 2012.