Word familyadjectiveringedringlessringletednounringerringetteringingringletringsterring binderringbitringboltringboneringdovering fingerringleaderringmanringmasterring roadringsideringsiderringstandringtailringwayringworkringwormringtoneringadverbringwiseringingly
ring·tone /ˈrɪŋtəʊn $ -toʊn/ noun [countableC]
the sound made by a telephone, especially a mobile phone, when someone is calling it 〔尤指手机的〕铃声