• enPR: sīd, IPA: /saɪd/
• (Scotland) IPA: /səɪd/

From Middle English side, from Old English sīde, from Proto-Germanic *sīdǭ, from Proto-Indo-European *sēy-.

side

1. A bounding straight edge of a two-dimensional shape.

   A square has four sides.

2. A flat surface of a three-dimensional object; a face.

   A cube has six sides.

3. One half (left or right, top or bottom, front or back, etc.) of something or someone.

   Which side of the tray shall I put it on?  The patient was bleeding on the right side.

   • 1897 December (indicated as 1898), Winston Churchill, chapter V, in The Celebrity: An Episode, New York, N.Y.: The Macmillan Company; London: Macmillan & Co., Ltd., →OCLC ↗:

     We expressed our readiness, and in ten minutes were in the station wagon, rolling rapidly down the long drive, for it was then after nine. […] As we reached the lodge we heard the whistle, and we backed up against one side of the platform as the train pulled up at the other.

   • 1918, W[illiam] B[abington] Maxwell, chapter XXIII, in The Mirror and the Lamp, Indianapolis, Ind.: The Bobbs-Merrill Company, →OCLC ↗:

     The slightest effort made the patient cough. He would stand leaning on a stick and holding a hand to his side, and when the paroxysm had passed it left him shaking.

4. A region in a specified position with respect to something.

   Meet me on the north side of the monument.

   • 1879, R[ichard] J[efferies], chapter II, in The Amateur Poacher, London: Smith, Elder, & Co., […], →OCLC ↗:

     Orion hit a rabbit once; but though sore wounded it got to the bury, and, struggling in, the arrow caught the side of the hole and was drawn out. Indeed, a nail filed sharp is not of much avail as an arrowhead; you must have it barbed, and that was a little beyond our skill.

5. The portion of the human torso usually covered by the arms when they are not raised; the areas on the left and right between the belly or chest and the back.

   Meronyms: flank, loin; latus, lumbus

   I generally sleep on my side.

   • 2006, American Academy of Orthopaedic Surgeons, Emergency Care and Transportation of the Sick and Injured (Jones & Bartlett Learning, ISBN 9780763744069, p. 234 ↗:

     Roll the patient onto the left side so that head, shoulders, and torso move at the same time without twisting.

6. One surface of a sheet of paper (used instead of "page", which can mean one or both surfaces.)

   John wrote 15 sides for his essay!

7. One possible aspect of a concept, person or thing.

   Look on the bright side.

8. One set of competitors in a game.

   Which side has kick-off?

9. (UK, Australia, Ireland) A sports team.
10. A group of morris dancers who perform together.
11. A group having a particular allegiance in a conflict or competition.

    there are two sides to every question

    Although there are two sides to every story, the fallacy that they are inevitably equally ethical is called bothsidesism.

    In the Second World War, the Italians were on the side of the Germans until Italy switched sides in 1943.

    • 2019, [https://web.archive.org/web/20190311070055/https://learningenglish.voanews.com/a/south-korea-proposes-rain-project-with-china-to-cut-pollution/4819207.html VOA Learning English] (public domain)

      "Creating artificial rain over the Yellow Sea would help the Chinese side too," the spokesman said Kim told the meeting.

    • 1824, Walter Savage Landor, Imaginary Conversations: Lord Chesterfield and Lord Chatham:

      We have not always been of the […] same side in politics.

    • 1733–1737, Alexander Pope, [Imitations of Horace], London: […] R[obert] Dodsley [et al.]:

      sets the passions on the side of truth

12. (music) A recorded piece of music; a record, especially in jazz.
13. (sports, billiards, snooker, pool) Sidespin; english

    He had to put a bit of side on to hit the pink ball.

14. (British, Australia, Ireland, dated) A television channel, usually as opposed to the one currently being watched (from when there were only two channels).

    I just want to see what's on the other side — James said there was a good film on tonight.

15. (US, Philippines, colloquial) A dish that accompanies the main course; a side dish.

    Do you want a side of cole-slaw with that?

16. A line of descent traced through a particular relative, usually a parent or spouse, as distinguished from that traced through another.

    his mother's side of the family

    • 1671, John Milton, “The Third Book”, in Paradise Regain'd. A Poem. In IV Books. To which is Added, Samson Agonistes, London: […] J[ohn] M[acock] for John Starkey […], →OCLC ↗:

      To sit upon thy father David's throne, / By Mothers side thy father.

17. (baseball) The batters faced in an inning by a particular pitcher.

    Clayton Kershaw struck out the side in the 6th inning.

18. (slang, dated, uncountable) An unjustified air of self-importance.
19. (drama) A written monologue or part of a scene to be read by an actor at an audition.
    • 2010, Viola Spolin, Carol Sills, Theater Games for Rehearsal: A Director's Handbook, page 12:

      Some directors use full scripts (book); others use “sides,” which consist of one or two words of the cue and the subsequent full speech of the individual actor.

20. (LGBT, slang) A man who prefers not to engage in anal sex during same-sex sexual activity.

    My boyfriend and I are both sides; we prefer to do oral and other stuff.

21. (math, obsolete) A root.
    • 1723, Edward Wells, The Young Gentleman's Arithmetick, and Geometry, page 127:

      And 9 is said to be the Square, 27 the Cube of 3, which is call'd the Side of 9 and 27, &c.

• (bounding straight edge of an object) edge
• (flat surface of an object) face
• (left or right half) half
• (surface of a sheet of paper) page
• (region in a specified position with respect to something)
• (one possible aspect of a concept)
• (set of opponents in a game) team
• (group having a particular allegiance in a war)
• (television channel) channel, station (US)

• French: côté
• German: Seite
• Italian: lato
• Portuguese: lado
• Russian: сторона́
• Spanish: lado

• French: face
• German: Seite
• Italian: faccia
• Portuguese: lado, face
• Russian: сторона́

• French: côté
• German: Seite
• Italian: lato
• Portuguese: lado
• Russian: сторона́
• Spanish: lado

• German: Seite
• Russian: бок

• French: page
• German: Seite
• Italian: lato
• Portuguese: página
• Russian: страни́ца
• Spanish: página

• French: costé
• Italian: lato
• Portuguese: lado

• Italian: lato
• Portuguese: lado, parte
• Russian: сторона́

• French: équipe
• Italian: squadra
• Portuguese: time
• Russian: сторона́
• Spanish: equipo, selección

• Portuguese: lado
• Russian: сторона́
• Spanish: bando

side

1. Being on the left or right, or toward the left or right; lateral.
   • 1667, John Dryden, Annus Mirabilis: The Year of Wonders, 1666. […], London: […] Henry Herringman, […], →OCLC ↗, (please specify the stanza number):

     One mighty squadron with a side wind sped.

2. Indirect; oblique; incidental.

   a side issue; a side view or remark

   • 1594–1597, Richard Hooker, edited by J[ohn] S[penser], Of the Lawes of Ecclesiastical Politie, […], London: […] Will[iam] Stansby [for Matthew Lownes], published 1611, →OCLC ↗, (please specify the page):

     The law hath no side respect to their persons.

side (sides, present participle siding; simple past and past participle sided)

1. (intransitive) To ally oneself, be in an alliance, usually with "with" or rarely "in with"

   Which will you side with, good or evil?

   • 1714, Alexander Pope, “The Rape of the Lock”, in The Works of Mr. Alexander Pope, volume I, London: […] W[illiam] Bowyer, for Bernard Lintot, […], published 1717, →OCLC ↗, canto V:

     All side in parties, and begin the attack.

   • 1958, Archer Fullingim, The Kountze [Texas] News, August 28, 1958:

     How does it feel... to... side in with those who voted against you in 1947?

2. To lean on one side.
3. (transitive, obsolete) To be or stand at the side of; to be on the side toward.
   • 1590, Edmund Spenser, “Book III, Canto IX”, in The Faerie Queene. […], London: […] [John Wolfe] for William Ponsonbie, →OCLC ↗, stanza 27:

     His blind eye that syded Paridell.

4. (transitive, obsolete) To suit; to pair; to match.
   • 1660-1667, Edward Hyde, 1st Earl of Clarendon, The Life of Edward Earl of Clarendon

     He had ſure read more , and carried more about him , in his excellent Memory , than any Man I ever knew , my Lord Falkland only excepted , who I think ſided him

5. (transitive, shipbuilding) To work (a timber or rib) to a certain thickness by trimming the sides.
6. (transitive) To furnish with a siding.

   to side a house

7. (transitive, cooking) To provide with, as a side or accompaniment.

• (ally oneself)
• take side

• Italian: schierarsi
• Portuguese: tomar parte, aliar-se

From Middle English side, syde, syd, from Old English sīd, from Proto-West Germanic *sīd, from Proto-Germanic *sīdaz, from Proto-Indo-European *sēy-.

side

1. (UK archaic, dialectal, Northern England, Scotland) Wide; large; long, pendulous, hanging low, trailing; far-reaching.
   • c. 1556, Thomas Cranmer, “That the general counsels withoute the worde of god are not sufficiente to make articles of fayth”, in A Confutation of Unwritten Verities‎:

     But when he perceaved that the sayd Pryest could not pourge himself of the foresayd crime he prively payed him his quarters wages before hande and suffered hym to departe without farther tryall of the sayd cryme: and now he jetteth in london wyth side gown and sarcenet typet as good a virgin priest as the best.

   • c. 1590 (date written), G[eorge] P[eele], The Old Wiues Tale. […], London: […] Iohn Danter, for Raph Hancocke, and Iohn Hardie, […], published 1595, →OCLC ↗, [lines 47-50]:

     What doe we make dost thou aske? why we make faces for feare: such as if thy mortall eyes could behold, would make thee water the long seames of thy side slops […]

   • 1598–1599 (first performance), William Shakespeare, “Much Adoe about Nothing”, in Mr. William Shakespeares Comedies, Histories, & Tragedies […] (First Folio), London: […] Isaac Iaggard, and Ed[ward] Blount, published 1623, →OCLC ↗, [Act III, scene iv]:

     By my troth, ’s but a night-gown in respect of yours: cloth o’ gold, and cuts, and laced with silver, set with pearls, down sleeves, side sleeves, and skirts, round underborne with a bluish tinsel […]

2. (Scotland) Far; distant.

side

1. (UK dialectal) Widely; wide; far.

side (sides, present participle siding; simple past and past participle sided)

1. To clear, tidy or sort.

From Latin Side, from Ancient Greek Σίδη.

1. An ancient city/archaeological site/and/modern town in modern Antalya.