Entry 2 senses · 2 variants Webster, 1913 overuse /(ō`vẽr*ūz")/ · o·ver·use · IPA /ˌoʊvɚˈjuːz/ v. t. n. 01 v. t. To use excessively; to use too often; as, scientists tend to overuse technical terms. 1. To use excessively; to use too often; as, scientists tend to overuse technical terms. 02 n. Excessive use. 1. Excessive use.