Dictionary.com
Thesaurus.com
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.

"We don't have to be referred to. Anybody can call, drop into our drop-in centres and we'll help them," Ms Arthur said.

From BBC

General manager Vinni Jones said the charity aimed to put a smile on people's faces from its drop-in base at Lewis Street in St Helier.

From BBC

Ms Gower spoke to the BBC after a seven-week consultation period, during which about 1,000 residents attended drop-in sessions to share their views.

From BBC

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

From The Wall Street Journal

The author’s first drop-in—he prefers the term “co-presence”—is a wren, who is given the run of the place and his own chapter.

From The Wall Street Journal