ifreann, m. (gs. -rinn). 1. Hell. Tine, pianta, ifrinn, the fires, pains, of hell. Diabhail ifrinn, hellish demons. Fíoríochtar ifrinn, the lowest pit of hell. Gabhadh sé go h~! Let him go to blazes! Ní bheidh ~ lán go dté sé ann, (of mischief-maker) hell would not be full without him. 2. Nether, infernal, regions.