Entry 2 senses Webster, 1913 Typology /tīpˌ-ōl'-əg-ĭˌ/ · Ty·pol·o·gy · IPA /taɪˈpɒl.ə.d͡ʒi/ 01 n. A discourse or treatise on types. 1. A discourse or treatise on types.(Theol.) 2. The doctrine of types.(Theol.)