sanitizeEnglishOxford American Thesaurussanitize verb 1 the best way to sanitize a chiller is to let boiling water flow through it: sterilize, disinfect, clean, cleanse, cauterize, purify, fumigate, pasteurize, decontaminate; technical autoclave; rare depollute. 2 sometimes she would depart from her official schedule and visit some village that had not been sanitized in advance: make presentable, make acceptable, make palatable, clean up; purge, expurgate, bowdlerize, censor, redact, emasculate, blue-pencil, water down.