greenhouse, nursery, glasshouse
['balance beam, beam', 'gas pump, gasoline pump, petrol pump, island dispenser', 'loudspeaker, speaker, speaker unit, loudspeaker system, speaker system', 'walking stick, walkingstick, stick insect', 'ear, spike, capitulum', 'paddlewheel, paddle wheel', 'breakwater, groin, groyne, mole, bulwark, seawall, jetty']