dropoutとは 意味・読み方・使い方

語源

Deverbal from drop out.

発音

• ハイフネーション: drop‧out

名詞

dropout (countable and uncountable, plural dropouts)

1. Someone who has left an educational institution without completing the course

   The politicians of the world are mere political university dropouts.

2. Someone who has opted out of conventional society.
3. One who suddenly leaves anything, or the act of doing so.
   • 1980 August 30, David Rothenberg, “A New York State of Confusion”, in Gay Community News, volume 8, number 6, page 5:

     The pastures are filled with gay political drop-outs, persons of reasonable intent who found the scene personally destructive.

   • 2010, R. Barker Bausell, Too Simple to Fail: A Case for Educational Change, page 193:

     To avoid excessive dropouts from the study, we wouldn't employ a single tutored group and a single control group that received no instruction at all.

4. (cycling) The slot in the frame that accepts the axles of the wheels.
5. A damaged portion of a tape or disk, causing a brief omission of audio, video, or data.
6. Momentary loss of an electronic signal.
7. A technique for regularizing a neural network by discarding a random subset of its units.

派生語

アナグラム

• outdrop

動詞

drop out (third-person singular simple present drops out, present participle dropping out, simple past and past participle dropped out)

1. (idiomatic) To leave (school, a race, etc.) prematurely and voluntarily.

   Nothing went well in high school, so he dropped out.

   • 2015, Aaron Sorkin, Walter Isaacson, Steve Jobs, spoken by Steve Jobs (Michael Fassbender):

     He [Bill Gates] dropped out of a better school than I dropped out of.

   • 2017 May 25, Mark Zuckerberg, “Mark Zuckerberg’s Commencement address at Harvard”, in The Harvard Gazette‎:

     I’m an unlikely speaker, not just because I dropped out, but because we’re technically in the same generation.

   • 2017 July 23, Brandon Nowalk, “The great game begins with a bang on Game Of Thrones (newbies)”, in The Onion AV Club‎:

     After all this time, the little girl who watched her father get beheaded, who was captured and impressed as her enemy’s servant, who was captured again and taken to the site of her family’s massacre, who enrolled at assassin school, who went blind, who dropped out to pursue vengeance, the woman who endured all that by focusing on her hit list can be swayed from her course by the prospect of her family and her home.

   • 2023 November 18, Blake Montgomery, Dani Anguiano, “OpenAI fires co-founder and CEO Sam Altman for allegedly lying to company board”, in The Guardian‎, →ISSN:

     Altman has long been viewed as a Silicon Valley wunderkind. In the tradition of other tech founders before him, Altman dropped out of Stanford in 2005 to launch his social-networking app, Loopt, which he later sold for $43m.

   • 2025 November 13, Kamala Thiagarajan, “If you're going to be kind to another human, today is the day to do it!”, in NPR‎:

     Huguette Diakabana remembers when she had to drop out of school at age 10 — until a mysterious donor came to her rescue.

2. To opt out of conventional society.
3. (of sound, electronic signal, etc.) To be lost or momentarily interrupted.

   I can't make phone calls because the line keeps dropping out.

4. Used other than figuratively or idiomatically: see drop,‎ out.
   • 1921 June, Margery Williams, “The Velveteen Rabbit: Or How Toys Become Real”, in Harper’s Bazar, volume LVI, number 6 (2504 overall), New York, N.Y.: International Magazine Company, →ISSN, →OCLC:

     Generally, by the time you are Real, most of your hair has been loved off and your eyes drop out and you get loose in the joints and very shabby.

5. (intransitive, Of a trapdoor or similar) To give way under someone.

   Synonym: fall out

   The board he was walking on dropped out.

6. (intransitive, Of the ground, floor, snow, etc., or figuratively, a worldview or foundation) To cause someone to slip and/or fall down.

   Synonym: fall out

   The ground dropped out from under him.

   When she left him, his world dropped out beneath him.

7. (transitive, slang) To dismiss, break up with or abandon (someone).

使用する際の注意点

• Often used with of: “drop out of the race”

派生語

• drop-in/drop-out
• tune in, turn on, drop out

関連する語

• drop
• drop-out, dropout

参考

• flunk out

アナグラム

• outdrop