IPA: /ɔːɡˈmɛn.teɪ.ʃən/
KK: /ɔɡˈmɛnˌteɪʃən/
The process of making something larger or greater in size, amount, or degree.
The augmentation of the city's infrastructure is necessary to support its growing population.
Augmentation is formed from "augere" (meaning to increase) and the suffix "-ation" (indicating a process or action). The word refers to the process of increasing or making something larger.
Think of 'increasing' something ('augere') — that's why augmentation means the process of making something larger.