• synonyms


  1. look! see! (frequently used in Biblical expressions; now usually used as an expression of surprise in the phrase lo and behold).
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Origin of lo1

before 900; Middle English; conflation of lo exclamation of surprise, grief, or joy, O! (Old English lā; see la2) and lo, shortened form of loke (Old English lōca), imperative of loken to look


  1. an informal, simplified spelling of low1, used especially in labeling or advertising commercial products: lo calorie.
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Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for lo

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British Dictionary definitions for lo


  1. look! see! (now often in the phrase lo and behold)
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Word Origin

Old English


abbreviation for
  1. hello
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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 lo


early 13c., from Old English la, exclamation of surprise, grief, or joy; influenced in Middle English by lo!, short for lok "look!" imperative of loken "to look" (see look (v.)). Expression lo and behold attested by 1779.

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Online Etymology Dictionary, © 2010 Douglas Harper