Definisi : vi 1. (fml or tech), (swing from side to side) berayun; (move from side to side) bergerak-gerak (ke kiri ke kanan): the pendulum ~s, bandul itu berayun; the speedometer needle ~d between 90 and 100 m.p.h, jarum meter laju itu bergerak-gerak antara had laju 90 dan 100 bsj; 2. vaccilate, berbolak-balik: he is continually oscillating between hope and despair, dia sentiasa berbolak-balik antara menaruh harapan dan berputus asa; 3. (of electric current) berayun; (Kamus Inggeris-Melayu Dewan)