open account; open air; open chain; open circuit; open door; open fire; open fireplace; open fracture; open frame; open house; open interval; open letter; open marriage; open order; open primary; open sandwich; open secret; open sesame; open shop; open sight; open society; open university; open up; open weave; open-air; open-air market; open-air marketplace; open-and-shut; open-angle glaucoma; open-chain; open-class word; open-collared; open-door policy; open-end credit; open-end fund; open-end investment company; open-end wrench; open-ended; open-eyed; open-face sandwich; open-heart surgery; open-hearth; open-hearth furnace; open-hearth process; open-minded; open-plan; open-source;