where

Etymology

From Middle English wher, from Old English hwǣr (“where”, literally “at what place”), from Proto-Germanic *hwar (“where”), from Proto-Indo-European *kʷo- (interrogative pronoun).

conj

1. In, at or to which place or situation.
   Energy has seldom been found where we need it when we want it. Ancient nomads, wishing to ward off the evening chill and enjoy a meal around a campfire, had to collect wood and then spend time and effort coaxing the heat of friction out from between sticks to kindle a flame. With more settled people, animals were harnessed to capstans or caged in treadmills to turn grist into meal. 2013 July-August, Henry Petroski, “Geothermal Energy”, in American Scientist, volume 101, number 4
   Through the open front door ran Jessamy, down the steps to where Kitto was sitting at the bottom with the pram beside him. 1967, Barbara Sleigh, Jessamy, Sevenoaks, Kent: Bloomsbury, published 1993, page 122
   I've forgotten where I was in this book, but it was probably around chapter four.
   I hardly knew where I was going.
2. In, at or to the place (that) or a place (that).
   Stay where you are.
   Go back where you came from.
   Let's go where it's warmer.
3. In, at or to any place (that); wherever; anywhere.
   Please sit where you like.
   Their job is to go where they are called.
4. In a position, case, etc. in which; if.
   You cannot be too careful where explosives are involved.
   Where no provision under this Act is applicable, the case shall be decided in accordance with the customary practices.
5. While on the contrary; although; whereas.
   July 18 2012, Scott Tobias, AV Club The Dark Knight Riseshttp://www.avclub.com/articles/the-dark-knight-rises-review-batman,82624/ Where the Joker preys on our fears of random, irrational acts of terror, Bane has an all-consuming, dictatorial agenda that’s more stable and permanent, a New World Order that’s been planned out with the precision of a military coup.
   Now we are liberal with our innermost secrets, spraying them into the public ether with a generosity our forebears could not have imagined. Where we once sent love letters in a sealed envelope, or stuck photographs of our children in a family album, now such private material is despatched to servers and clouds operated by people we don't know and will never meet. 2013-06-14, Jonathan Freedland, “Obama's once hip brand is now tainted”, in The Guardian Weekly, volume 189, number 1, page 18
   Where Susy has trouble coloring inside the lines, Johnny has already mastered shading.

adv

1. Interrogative adverb, used in either a direct or indirect question: in, at or to what place.
   1. (with certain prepositions) What place.
      Where did you come from?
      Where are you off to?
      Where are you at? (informal)
   2. (informal) where are.
      Where you at?
      Where you going?
2. In what situation.
   Where would we be without our parents?
3. (relative) In, at or to which.
   This is the place where we first met.
   He is looking for a house where he can have a complete office.
   That's the place where we went on holiday.
   Here's a picture of York, where I was born. (non-defining)
4. (fused relative) The place in, at or to which.
   He lives within five miles of where he was born.
   This is a photo of where I went on holiday.

noun

1. The place in which something happens.
   A good article will cover the who, the what, the when, the where, the why and the how.