- Modernize is to update something to make it more current or more compatible with current technology and practices.
An example of modernize is when you take an old house and add indoor plumbing to it.
transitive verbmodernized, modernizing
Origin of modernizeFrench moderniser
verbmo·dern·ized, mo·dern·iz·ing, mo·dern·iz·es
(third-person singular simple present modernizes, present participle modernizing, simple past and past participle modernized)