ISLE Meaning of ISLE in English [isle] n [ME, fr. OF, fr. L insula] (13c): island; esp: islet [2]isle vt isled ; isl.ing (ca. 1576) 1: to make an isle of 2: to place on or as if on an isle Merriam-Webster English vocab. Английский словарь Merriam Webster. 2012