internally displaced person UK /ɪnˌtɜːnəli dɪsˌpleɪst ˈpɜːsn̩/US /ɪnˌtɜɹnəli dɪsˌpleɪst ˈpɜɹs(ə)n/ noun1 •Someone who is forced to flee their home but who remains within their country's borders. formsinternally displaced people · internally displaced persons