Synonyms for Censoring:

adj.

suppressive (adjective)
covering up.

n.

act (noun)
censorship, security review.
censoring (noun)
censorship, security review.

v.

concealing (verb)
Cloaking, screening, blinding, hiding, Hushing, masking, concealing, enshrouding, Obscuring, camouflaging, Disguising, covering up, burying.
obliterating (verb)
Annulling, Eradicating, Canceling, cutting, Omitting, editing, Eliminating, striking, obliterating, Expurgating, expunging, Deleting, annihilating, Erasing.

Other synonyms:

Other relevant words:
censorship, security review.