in

Definitions

General English

  • preposition used for showing place
  • preposition at home, in an office, at a station
  • preposition used for showing time in the future
  • preposition used for showing a state or appearance

Agriculture

  • prefix
    (written as in-)
    used to refer to a pregnant female animal

Cricket

  • adverb in or into the position of being the batsman or batting side
    Citation ‘The Party that wins the toss-up, may order which Side shall go in first, at his Option’ (Laws 1744)
    Citation ‘With the score at 57–3, I went in ahead of Gatting, hoping to steady the innings for a while’ (Brearley 1982)
    Citation ‘A cricketer need only look at his scores and references to see how often the out side … has prevented the in side from getting the runs required’ (Badminton 1888)
  • adverb (of the ball) moving in the direction of leg-side and towards the batsman, from a line initially further to the off
    Citation ‘Hudson … had any intent on a four-hour net broken by a clever ball from Tufnell, which drifted in to him as he went to drive towards extra cover’ (Richard Hutton, Cricketer September 1994)
  • adverb (of the fielders) positioned fairly close to the wicket rather than in the deep
    Citation ‘I can easily bring the field in for Harbhajan Singh but not so easily for Virender Sehwag’ (Rahul Dravid, quoted in Cricinfo Magazine January 2006, p39)
  • noun a decision by the umpire that a batsman is not out
    Citation ‘They are the sole Judges of all Outs and Inns [and] of all fair or unfair Play’ (Laws 1744)

Information & Library Science

  • adverb done internally by a company
  • prefix
    (written as in-)
    added to some words to create the opposite meaning, e.g. ‘correct’ – ‘incorrect’

Medical

  • prefix
    (written as in-)
    in, into, towards

Sports

  • adjective used for indicating that a sports team or player is batting

Electronics

  • abbreviation fornatural logarith
    (written as In)
  • chemical symbol forindium
    (written as In)

Origin & History of “in”

In is a widespread preposition amongst the Indo-European languages. Greek had en, Latin in (whence French and Italian en and Spanish in), and amongst modern languages German and Dutch have in, Swedish i, Welsh yn, and Russian v, all of which point back to an original Indo-European *en or *n. The adverb in was not originally the same word; it comes from a conflation of two Old English adverbs, inn and inne, both ultimately related to the preposition in. (An inn is etymologically a place ‘in’ which people live or stay.).
http://www.dictionarycentral.com/definition/in.html