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erect

American  
[ih-rekt] / ɪˈrɛkt /

adjective

  1. upright in position or posture.

    to stand or sit erect.

    Synonyms:
    vertical, standing
  2. raised or directed upward.

    a dog with ears erect.

  3. Botany. vertical throughout; not spreading or declined.

    an erect stem;

    an erect leaf or ovule.

  4. Heraldry.

    1. (of a charge) represented vertically, following the line of a pale.

      a sword erect.

    2. (of an animal or part of an animal) represented upright.

      a boar's head erect.

  5. Optics. (of an image) having the same position as the object; not inverted.


verb (used with object)

  1. to build; construct; raise.

    to erect a house.

    Synonyms:
    upraise, upend, set up, put up
  2. to raise and set in an upright or vertical position.

    to erect a telegraph pole.

  3. to set up or establish, as an institution; found.

  4. to bring about; cause to come into existence.

    to erect barriers to progress.

  5. Geometry. to draw or construct (a line or figure) upon a given line, base, or the like.

  6. to form or create legally (usually followed byinto ).

    to erect a territory into a state.

  7. Optics. to change (an inverted image) to the normal position.

  8. Machinery. to assemble; make ready for use.

verb (used without object)

  1. to become erect; stand up or out.

erect British  
/ ɪˈrɛkt /

adjective

  1. upright in posture or position; not bent or leaning

    an erect stance

  2. (of an optical image) having the same orientation as the object; not inverted

  3. physiol (of the penis, clitoris, or nipples) firm or rigid after swelling with blood, esp as a result of sexual excitement

  4. (of plant parts) growing vertically or at right angles to the parts from which they arise

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

verb

  1. to put up; construct; build

  2. to raise to an upright position; lift up

    to erect a flagpole

  3. to found or form; set up

  4. (also intr) physiol to become or cause to become firm or rigid by filling with blood

  5. to hold up as an ideal; exalt

  6. optics to change (an inverted image) to an upright position

  7. to draw or construct (a line, figure, etc) on a given line or figure, esp at right angles to it

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Related Words

See upright.

Other Word Forms

Etymology

Origin of erect

First recorded in 1350–1400; Middle English, from Latin ērēctus “raised up” (past participle of ērigere ), equivalent to ē- e- 1 + reg- “guide, direct” ( see royal) + -tus past participle suffix

Explanation

Erect means "build" or "upright." If you erect a house, you build it. If you stand erect, you hold your body as tall as possible. Erect comes from the Latin word erectus, meaning “upright, elevated, lofty” or “eager, alert, aroused.” Erect is a verb, as in, it will take you years to erect your replica of the Eiffel Tower using only gum and toothpicks. Erect is also an adjective, as in something that is tall, firm, straight or rigid, like a half-dead plant that becomes more erect when you water it.

Keep Reading on Vocabulary.com

Vocabulary lists containing erect

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Erect a giant Halloween skeleton on your front lawn year-round?

From Los Angeles Times • Aug. 1, 2025

Erect a platform for their cameras, and let them treat the debates as the news events they are.

From Salon • Aug. 3, 2019

The New Orleans Committee to Erect Historic Markers on the Slave Trade has placed markers at the Moonwalk along the Mississippi River and at the intersection of Esplanade Avenue and Chartres Street.

From Washington Times • May 7, 2018

Erect the table in the center space, and the back transforms into a den or dining room.

From Washington Post • Mar. 3, 2016

Erect, rifles at their sides, their faces stern, the soldiers did not make eye contact as they surrounded us in a protective cocoon.

From "Warriors Don't Cry: A Searing Memoir of the Battle to Integrate Little Rock's Central High" by Melba Pattillo Beals

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