• synonyms


or head room

[hed-room, -roo m]
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  1. Nautical. the clear space between two decks.
  2. Also called headway.
    1. clear vertical space, as between the head and sill of a doorway, the ceiling and floor of a room, or the ceiling of a vehicular passageway and a vehicle roof, as to allow passage or comfortable occupancy: over 7.5 feet of headroom in the attic; a covered bridge with limited headroom.
    2. clear vertical space above one’s head, as in a vehicle or room: plenty of headroom for passengers.
  3. Audio. dynamic headroom.
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Origin of headroom

First recorded in 1850–55; head + room
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Related Words for headroom

slot, arena, capacity, zone, area, spot, field, location, territory, distance, clearance, expanse, breadth, omission, headway, compass, sphere, leeway, blank, stretch

Examples from the Web for headroom

Contemporary Examples of headroom

Historical Examples of headroom

British Dictionary definitions for headroom



  1. the height of a bridge, room, etc; clearance
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Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for headroom


"space above the head," 1851, from head (n.) + room (n.).

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Online Etymology Dictionary, © 2010 Douglas Harper