DictionaryAI

side

SYD/saɪd/

Pluralsides

Verbsides, siding, sided

36 meanings of side

Practice

  1. 1
    locationnouncountable or uncountable
    A region lying in a particular position relative to something, such as the land beyond a road or river.

    We parked on the east side of the building.

    The village sits on the far side of the mountains.

    UsageOften on the other side of the street, on the north side of town, on this side of the river.

  2. 2
    nouncountable or uncountable
    Either half of something or someone: left or right, top or bottom, or front or back.

    After the dentist, the left side of her face stayed numb until dinner.

    A scar ran down the left side of his face.

    Similarhalf

  3. 3
    outer facenouncountable or uncountable
    One of the flat outer surfaces of an object, including either surface of a sheet of paper.

    The movers wrote 'fragile' in thick red marker on every side of the box.

    A cube has six identical sides.

    UsageWrite on one side or both sides of the paper. In geometry, face is the more precise word.

    Similarface, surface

    Note

    Where a flat shape has edges, a solid has faces, and everyday English calls both of them sides: a cube has six. When precision matters, face is the word that keeps the two apart. The edge of a flat figure is a line, but this is a surface. The sides of a box, a crate or a building are all faces in this sense.

    Checked 31 Oct 2026 · 3 facts

  4. 4
    nouncountable or uncountable
    A group united by a shared allegiance in a conflict, dispute, or competition.

    The two sides could not reach an agreement.

    He always takes the weaker side in any quarrel.

    UsageFixed phrases: take sides, take someone's side, be on someone's side, switch sides.

    Similarparty, camp, faction

    Note

    The sense behind a cluster of fixed phrases: take sides, switch sides, be on the side of. It is also behind the saying that there are two sides to every question, whose careless reading has earned the name bothsidesism. In diplomatic reporting it stands for one party to a negotiation, as in "the Chinese side."

    Checked 31 Oct 2026 · 2 facts

    • The saying 'there are two sides to every question' is attested. gutenberg.org
    • An indiscriminate insistence on presenting both sides is called bothsidesism. foreignpress.org
  5. 5
    aspectnouncountable or uncountable
    A particular aspect of a person, idea, or situation among several possible ones.

    He rarely shows the angry side of his personality.

    Every argument has another side worth hearing.

    UsageOften with an adjective: her kind side, the funny side. Look on the bright side means focus on what is good about a situation.

    Similaraspect, facet, angle, perspective

  6. 6
    teamnouncountable or uncountable
    One set of players competing as a unit against another in a game.

    Each side chose a captain before the match began.

    The losing side had to buy the snacks.

    Similarteam

  7. 7
    secondaryadjective
    Not central or direct; secondary, incidental, or away from the main matter.

    The medicine had an unpleasant side effect.

    Let's not get stuck on a side question.

    UsageGoes before the noun: a side effect, a side issue.

    Similarsecondary, incidental, peripheral, tangential, minor

    Oppositemain, central, primary

  8. 8
    adjective
    Positioned on, or directed toward, the left or right of something; lateral.

    The building has a side entrance for deliveries.

    She tucked her water bottle into the backpack's side pocket.

    UsageGoes before the noun: the side door, a side pocket.

    Oppositemain

  9. 9
    extra dishnouncolloquialCanadaPhilippinesUScountable or uncountable
    A dish served alongside the main course, such as fries or a salad.

    The menu lets you pick two sides with any entrée.

    He always gets fries as his side.

    UsageOften a side of + food: a side of fries. Formal writing prefers side dish.

    Similaraccompaniment

    Note

    Menu and counter English in the US, Canada and the Philippines, clipped from side dish.

  10. 10
    nouncountable
    The spot immediately beside someone, often implying that a person there is giving company, comfort, or support, as in by or at someone's side.

    Through every round of treatment, her sister was at her side.

    He worked at the senator's side for twenty years, through two campaigns and countless crises.

    UsageUsually singular with a possessive: never left her side. In the plural, arms at your sides means the flanks of your body, not company.

  11. 11
    nouncountable or uncountable
    A straight line forming one of the boundaries of a two-dimensional shape.

    A regular hexagon has six sides of equal length.

    The longest side of a right triangle is called the hypotenuse.

  12. 12
    flanknouncountable or uncountable
    The area of the human torso on the left or right, between the chest or belly and the back, usually covered by the arm.

    She felt a stitch in her side after running.

    The doctor pressed gently on his left side.

    UsagePain is in your side: a stitch in her side. You sleep on your side.

    Similarflank

    Note

    It is the side you sleep on. It is also the side first-aid manuals tell you to roll a patient onto, with head, shoulders and torso moving together without twisting.

    Checked 2 Nov 2026 · 2 facts

    • People sleep on their side. nhs.uk
    • First-aid training describes rolling a patient onto their side with head, torso and shoulders moving together without twisting. rosap.ntl.bts.gov
  13. 13
    supportverbintransitive
    To take the part of one group or person in a dispute, usually followed by "with."

    Most of the committee sided with the new proposal.

    Why do you always side with him?

    UsageSide with someone, often against another: she sided with him against her boss.

    Similaragree, ally, align

    Oppositeoppose

    Note

    Older English could make it reflexive. In his essay Of Great Place, Francis Bacon advises that it is good "to side a man's self" while rising, whereas Pope's The Rape of the Lock (1712) shows the plain use: "All side in parties." The rarer side in with appears in a 1958 Texas newspaper.

    Checked 3 Nov 2026 · 5 facts

    • Older English could use side reflexively. gutenberg.org
    • Francis Bacon's essay Of Great Place advises siding oneself while rising and contains the quoted wording. gutenberg.org
    • The poem was first published in 1712; its expanded five-canto version appeared in 1714. gutenberg.org
    • Pope's The Rape of the Lock contains the nonreflexive wording All side in parties. gutenberg.org
    • Side in with appears in a Texas newspaper from 1958. en.wiktionary.org
  14. 14
    family linenouncountable or uncountable
    A line of family descent traced through one parent or relative, as distinct from the other.

    The musical talent comes from her mother's side of the family.

    On my father's side, everyone lived past ninety.

    UsageUsually on + possessive: on my mother's side (of the family).

    Similarline, lineage

    Note

    Milton could write "By Mothers side" in 1671. The phrase lets a speaker place a relative, a name or a trait in one branch of the family.

    Checked 2 Nov 2026 · 2 facts

Practice

Can you tell the meanings of side apart? Answer 3 quick questions from this page, or write your own sentence and AI will check it.

Origins

Meanings 1–24, 26–27

English side comes from Old English sīde ("side, flank") by way of Middle English side. The Old English word came from Proto-Germanic *sīdǭ, which could mean "side," "flank," "edge," or "shore," and which was in turn built on *sīdaz ("long, hanging down"), probably from Proto-Indo-European *seh₁- ("long, lasting"). Related words include German Seite, Dutch zijde, and Swedish sida. Sex therapist Joe Kort coined the LGBTQ slang meaning in 2010, modeling it on "top" and "bottom": a box has sides as well as a top and a bottom.

Checked 1 Nov 2026 · 9 facts

Meaning 25

From Middle English side, from Old English sīd ("wide, broad, spacious, extensive"), from Proto-West Germanic *sīd and Proto-Germanic *sīdaz ("drooping, hanging, low"), perhaps ultimately from Proto-Indo-European *sēy-. It is related to Low German sied ("low") and Icelandic síður ("low hanging, long").

Checked 1 Nov 2026 · 7 facts

  • The archaic adjective side derives through Middle English side from Old English sīd. en.wiktionary.org
  • Old English sīd meant wide, broad, spacious or extensive. en.wiktionary.org
  • Old English sīd derives from reconstructed Proto-West Germanic *sīd and Proto-Germanic *sīdaz. en.wiktionary.org
  • Proto-Germanic *sīdaz expressed drooping, hanging down or extending low. en.wiktionary.org
  • Proto-Indo-European *sēy- is a proposed ultimate origin. en.wiktionary.org
  • Low German sied, meaning low, is cognate with this adjective. en.wiktionary.org
  • Icelandic síður means low-hanging or long and shares the adjective's Germanic ancestry. en.wiktionary.org