p, m, i, u, x are letters that make 'mix-up'
mi, MI, IX, up, ix, mix are words within 'mix-up'
1 possible definitions for 'mix-up'
Under this definition, mix-up is a noun and has the following properties:
confusion has the same meaning as mix-up
'mix-up' can be a type of mistake, error, fault.
confuse, confound are derivatives of 'mix-up'.