Drop-in

adj, noun

adj, noun ·Rare ·Advanced level

Definitions

Noun
  1. 1
    One who casually drops in (visits unannounced or without appointment).

    "The office was efficient, but not well equipped to handle drop-ins."

  2. 2
    An informal event that does not require booking in advance.
  3. 3
    A place that can be visited casually, without an appointment.
  4. 4
    The act of dropping in; that is, taking a wave that another surfer is already riding.

    "Drop-ins can and often do happen accidentally. Sometimes you're so focussed on your take-off that you just don't see the other rider."

  5. 5
    A pitch that is prepared away from the ground or venue, and dropped into place only when a match is to be played.
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  1. 6
    A message or advertisement inserted into other material.
Adjective
  1. 1
    Provided for short-term use. not-comparable
  2. 2
    Fit to substitute for some element in a complex system without changes to the existing infrastructure. not-comparable

    "We need the ultimate drop-in biofuel to make use of our expensive oil-based infrastructure."

  3. 3
    Allowing people to drop in; that is, to visit casually, without an appointment. not-comparable

    "a drop-in centre"

  4. 4
    Of the pitch: prepared away from the ground or venue, and dropped into place only when a match is to be played. not-comparable

    "The pitch at the Melbourne Cricket Ground is drop-in, and the ground is also used for Australian rules football."

Synonyms

All synonyms
walk-in

Example

More examples

"We need the ultimate drop-in biofuel to make use of our expensive oil-based infrastructure."

Related phrases

drop-in center

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.