a, o, d, l, n, r, t, i, v are letters that make 'invalidator'
DAT, lid, OR, id, VA, IDA, DA, Ali, at, invalid, valid, li, in, AL, ID, IN, NV, tor, Vali, Al, At, In, Li are words within 'invalidator'
1 possible definitions for 'invalidator'
Under this definition, invalidator is a noun and has the following properties:
'invalidator' can be a type of official, functionary.
quash, invalidate, nullify, annul, avoid, void are derivatives of 'invalidator'.
"my bank check was voided and I wanted to know who the invalidator was"