Letters that make blue gum
b, e, g, l, m, u are letters that make 'blue gum'
1 possible definitions for 'blue gum'
Under this definition, blue gum is a noun and has the following properties:
fever tree, Eucalyptus globulus have the same meaning as 'blue gum'
'blue gum' can be a type of eucalyptus, eucalypt, eucalyptus tree.