oscailt, f. (gs. ~e, pl. ~í).1. vn. of oscail. 2. Opening. ~ idir charraigeacha, an opening between rocks. ~ súl, eye-opener. Baineadh ~ as a bhéal le pian, his mouth opened wide with pain. Tá an doras ar ~, the door is open. 3. Agr: First strip (in ploughing).