roaming UK /ˈɹəʊmɪŋ/US /ˈɹoʊmɪŋ/ noun4 •An instance of wandering. •The ability to use a cell phone outside of its original registering zone. •The use of a network or service from different locations or devices. •Using the OS service of manipulating folders and documents from different PC devices by a registered user. formsroamings