Solutions Horizon has 22 entries with similar clues

• 3-letter words
• setOf the sun, drop below the horizon
• esaGroup in charge of Horizon 2000
• 4-letter words
• beamHorizontal structural member
• railHorizontal bar
• afarBeyond the horizon, say
• 5-letter words
• treadHorizontal part of a stair
• gabonafrican country whose flag comprises green, yellow and blue horizontal stripes
• slantDeviation from the horizontal
• 6-letter words
• courseHorizontal layer of bricks
• oilrigSetting for "Deepwater Horizon"
• lintelHorizontal beam over a door or window
• 7-letter words
• railingBarrier of a horizontal bar and supports
• 8-letter words
• crossbarHorizontal beam on goalposts
• verticalnot horizontal
• 9-letter words
• turnstileA mechanical gate with revolving horizontal arms that allow only one person at a time
• arabesqueA ballet posture in which one leg is extended horizontally backwards and the arms are outstretched
• 10-letter words
• theodoliteAn instrument to measure horizontal and vertical angles
• shangri-laRealm of eternal bliss of Lost Horizon
• crosstreesHorizontal struts that spread the rigging
• 11-letter words
• grand-pianoLarge instrument with horizontal strings
• 12-letter words
• spirit-levelTool for checking horizontality
• 13-letter words
• chest-freezerHorizontal cold store