An oad da zimezin An Oaf Climbing A Fence An Oak Grows An Oak Tree An Oak Tree On The Mountain (Wedding song) An Oak Tree Stands Beside a Linden An oaken citadel An Oasis An Oasis from the World An Oasis Of Bronze an oasis of light shows up the chilly grey wall An Oasis Of Love An Oath An Oath Drawn in Blood An Oath He Means to Keep An oath in silence AN OATH OF THE SWORD An Oath Sworn An Oath Sworn in Bjorgvin An Oath Sworn in Hell An Oath Sworn On The Ashlar Stone (Live) An Oath, My Friend! An Oath, Until The End