INVALIDATOR

Pronunciation (US): (GB):

Meaning:

An official who can invalidate or nullify

Example:

my bank check was voided and I wanted to know who the invalidator was

Synonyms:

invalidator; nullifier; voider

Classified under:

Nouns denoting people

Hypernyms ("invalidator" is a kind of...):

functionary; official (a worker who holds or is invested with an office)

Derivation:

invalidate (declare invalid)