fastslå verb | ascertain [ascertained, ascertaining, ascertains](find out; discover or establish) verb [UK: ˌæ.sə.ˈteɪn] [US: ˌæ.sər.ˈteɪn] establish [established, establishing, establishes](To make stable or firm; to confirm) verb [UK: ɪ.ˈstæ.blɪʃ] [US: ə.ˈstæ.blɪʃ] |