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  • drop-in
    drop-in
    noun
    Also a person who or thing that pays an unexpected or uninvited visit.
  • drop in
    drop in
    verb
    surfing to intrude on a wave that another surfer is already riding
Synonyms

drop-in

American  
[drop-in] / ˈdrɒpˌɪn /

noun

  1. Informal. Also a person who or thing that pays an unexpected or uninvited visit.

    a feeder for squirrels, raccoons, and other drop-ins.

  2. Informal. a social gathering at which the guests are not expected to stay long.

    Be sure to stop by our house for a glass of eggnog at our Christmas drop-in.


adjective

  1. provided for short-term patronage.

    a drop-in shelter for people who are moving through homelessness.

  2. requiring only insertion to be ready for use.

    a drop-in battery pack.

drop in British  

verb

  1. surfing to intrude on a wave that another surfer is already riding

"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

Etymology

Origin of drop-in

First recorded in 1810–20; noun and adjective use of verb phrase drop in

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.

Sometimes, though, capybaras need more help than they can get from these drop-in visits—a fact that, along with the species’ rising popularity, has ushered some capybaras of Brazil into a new kind of lifestyle entirely.

From Slate • May 27, 2026

A morning at the local Citizens Advice drop-in clinic highlights the issues present.

From BBC • May 4, 2026

The co-operative used community share offers to help open their present building, CAN HQ, which showcases the work of over 100 local creatives and artists, alongside an advice drop-in, repair workshop and kids clubs.

From BBC • Apr. 30, 2026

The result is a drop-in replacement for metallurgical coal.

From The Wall Street Journal • Dec. 17, 2025

“Of course! What did I do to get so lucky for a drop-in visit? Everything okay?”

From "The Wrong Way Home" by Kate O’Shaughnessy

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