Expand vs. Extend - What's the difference?

Wiktionary

  • Expand (verb)

    To change (something) from a smaller form and/or size to a larger one; to spread out or lay open.

    "You can expand this compact umbrella to cover a large table."

  • Expand (verb)

    To increase the extent, number, volume or scope of (something).

    "A flower expands its leaves."

  • Expand (verb)

    To express (something) at length and/or in detail.

  • Expand (verb)

    To rewrite (an expression) as a longer, yet equivalent sum of terms.

    "Use the binomial theorem to expand"

    "(x+1)4"

    "to"

    "x4 + 4x3 + 6x2 + 4x + 1."

  • Expand (verb)

    To multiply both the numerator and the denominator of a fraction by the same natural number yielding a fraction of equal value

  • Expand (verb)

    To (be) change(d) from a smaller form/size to a larger one.

    "Many materials expand when heated."

    "This compact umbrella expands to cover a large table."

  • Expand (verb)

    To (be) increase(d) in extent, number, volume or scope.

  • Expand (verb)

    To speak or write at length or in detail.

    "He's so pedantic, he expands on everything!"

  • Expand (verb)

    To feel generous or optimistic.

  • Extend (verb)

    To increase in extent.

  • Extend (verb)

    To possess a certain extent.

  • Extend (verb)

    To cause to increase in extent.

  • Extend (verb)

    To cause to last for a longer period of time.

  • Extend (verb)

    To straighten (a limb).

  • Extend (verb)

    To bestow; to offer; to impart; to apply.

    "to extend sympathy to the suffering"

  • Extend (verb)

    To increase in quantity by weakening or adulterating additions.

  • Extend (verb)

    To value, as lands taken by a writ of extent in satisfaction of a debt; to assign by writ of extent.

  • Extend (verb)

    Of a class: to be an extension or subtype of, or to be based on, a prototype or a more abstract class.

    "The classes Person and Dog extend the class Animal."

    "inherit"

Webster Dictionary

  • Expand

    To lay open by extending; to open wide; to spread out; to diffuse; as, a flower expands its leaves.

  • Expand

    To cause the particles or parts of to spread themselves or stand apart, thus increasing bulk without addition of substance; to make to occupy more space; to dilate; to distend; to extend every way; to enlarge; - opposed to contract; as, to expand the chest; heat expands all bodies; to expand the sphere of benevolence.

  • Expand

    To state in enlarged form; to develop; as, to expand an equation. See Expansion, 5.

  • Expand (verb)

    To become widely opened, spread apart, dilated, distended, or enlarged; as, flowers expand in the spring; metals expand by heat; the heart expands with joy.

  • Extend

    To stretch out; to prolong in space; to carry forward or continue in length; as, to extend a line in surveying; to extend a cord across the street.

  • Extend

    To enlarge, as a surface or volume; to expand; to spread; to amplify; as, to extend metal plates by hammering or rolling them.

  • Extend

    To enlarge; to widen; to carry out further; as, to extend the capacities, the sphere of usefulness, or commerce; to extend power or influence; to continue, as time; to lengthen; to prolong; as, to extend the time of payment or a season of trial.

  • Extend

    To hold out or reach forth, as the arm or hand.

  • Extend

    To bestow; to offer; to impart; to apply; as, to extend sympathy to the suffering.

  • Extend

    To increase in quantity by weakening or adulterating additions; as, to extend liquors.

  • Extend

    To value, as lands taken by a writ of extent in satisfaction of a debt; to assign by writ of extent.

Princeton's WordNet

  • Expand (verb)

    extend in one or more directions;

    "The dough expands"

  • Expand (verb)

    become larger in size or volume or quantity;

    "his business expanded rapidly"

  • Expand (verb)

    make bigger or wider in size, volume, or quantity;

    "expand the house by adding another wing"

  • Expand (verb)

    grow stronger;

    "The economy was booming"

  • Expand (verb)

    exaggerate or make bigger;

    "The charges were inflated"

  • Expand (verb)

    add details, as to an account or idea; clarify the meaning of and discourse in a learned way, usually in writing;

    "She elaborated on the main ideas in her dissertation"

  • Expand (verb)

    expand the influence of;

    "The King extended his rule to the Eastern part of the continent"

  • Extend (verb)

    extend in scope or range or area;

    "The law was extended to all citizens"

    "widen the range of applications"

    "broaden your horizon"

    "Extend your backyard"

  • Extend (verb)

    stretch out over a distance, space, time, or scope; run or extend between two points or beyond a certain point;

    "Service runs all the way to Cranbury"

    "His knowledge doesn't go very far"

    "My memory extends back to my fourth year of life"

    "The facts extend beyond a consideration of her personal assets"

  • Extend (verb)

    span an interval of distance, space or time;

    "The war extended over five years"

    "The period covered the turn of the century"

    "My land extends over the hills on the horizon"

    "This farm covers some 200 acres"

  • Extend (verb)

    make available; provide;

    "extend a loan"

    "The bank offers a good deal on new mortgages"

  • Extend (verb)

    thrust or extend out;

    "He held out his hand"

    "point a finger"

    "extend a hand"

    "the bee exserted its sting"

  • Extend (verb)

    reach outward in space;

    "The awning extends several feet over the sidewalk"

  • Extend (verb)

    offer verbally;

    "extend my greetings"

    "He offered his sympathy"

  • Extend (verb)

    extend one's limbs or muscles, or the entire body;

    "Stretch your legs!"

    "Extend your right arm above your head"

  • Extend (verb)

    expand the influence of;

    "The King extended his rule to the Eastern part of the continent"

  • Extend (verb)

    lengthen in time; cause to be or last longer;

    "We prolonged our stay"

    "She extended her visit by another day"

    "The meeting was drawn out until midnight"

  • Extend (verb)

    extend or stretch out to a greater or the full length;

    "Unfold the newspaper"

    "stretch out that piece of cloth"

    "extend the TV antenna"

  • Extend (verb)

    cause to move at full gallop;

    "Did you gallop the horse just now?"

  • Extend (verb)

    open or straighten out; unbend;

    "Can we extend the legs of this dining table?"

  • Extend (verb)

    use to the utmost; exert vigorously or to full capacity;

    "He really extended himself when he climbed Kilimanjaro"

    "Don't strain your mind too much"

  • Extend (verb)

    prolong the time allowed for payment of;

    "extend the loan"

  • Extend (verb)

    continue or extend;

    "The civil war carried into the neighboring province"

    "The disease extended into the remote mountain provinces"

  • Extend (verb)

    increase in quantity or bulk by adding a cheaper substance;

    "stretch the soup by adding some more cream"

    "extend the casserole with a little rice"

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