To reduce to nothing; annihilate; obliterate.To make void or null; nullify; abrogate; abolish; do away with: used especially of laws, decrees, edicts, decisions of courts, or other established rules, usages, and the like.Synonyms Abolish, Repeal, etc. (see abolish); Nullify, Annihilate, etc. (see neutralize); retract, declare null and void, supersede.