You can find definition of er below. Words can have several meanings depending on the context. Their meaning may vary depending on where they are used. Please choose approriate definition according to part of speech and context. We have found 2 different definitions of er. er is a 2 letter word. It starts with e and ends with r.
a trivalent metallic element of the rare earth group; occurs with yttrium
a room in a hospital or clinic staffed and equipped to provide emergency care to persons requiring immediate medical treatment