I.on [美 ɑn, ɔn, 英 ɒn]介词on often appears as the second element of certain verb structures in English (count on, lay on, sign on, etc). For translations, see the relevant verb entry (count, lay, sign, etc).
The bank's loan-book witnessed a sharp growth largely on account of a greater thrust on the retail segment and diversification across regions, the release said.