English Reference
noun · verb

pipeline

n. · v.
US /ˈpaɪˌpɫaɪn/ UK /pˈaɪplaɪn/ pipe·line UK spelling pipelined, pipelines, pipelining

  1. 01 B2 Upper Intermediate

    n.a very long series of pipes used to carry water, oil, or gas over long distances.

    n.a conduit of connected pipes used to transport fluids, such as petroleum, natural gas, or water, across geographic regions.

    Simple

    The company is building a new pipeline to carry natural gas to the coast.

    In context

    Environmental groups raised concerns about the proposed pipeline, fearing that a leak could contaminate the local groundwater supply.

  2. 02 B2 Upper Intermediate

    n.a process where things are being planned or developed for the future.

    n.a metaphorical system or sequence through which products, projects, or candidates are processed or developed.

    Simple

    We have several new video games in the pipeline for next year.

    In context

    The pharmaceutical firm has three promising new drugs in its research pipeline, though none will reach the market for several years.

    Usage

    Often used in the phrase 'in the pipeline' to mean 'under development'.

  3. 03 C1 Advanced Technical Computing

    n.a way for a computer to process data in a series of steps, one after another.

    n.a sequence of data processing stages where the output of one element is the input of the next.

    Simple

    The graphics pipeline handles how the computer draws 3D objects on your screen.

    In context

    Modern processors use instruction pipelining to execute multiple commands simultaneously, significantly increasing the overall throughput of the system.

  4. 04 C1 Advanced Technical

    v.to move a liquid or gas through a system of pipes.

    v.to convey a substance through a network of pipes. Transitive — requires a direct object.

    Simple

    Fresh water is pipelined from the mountains to the dry plains below.

    In context

    The refinery is designed to pipeline crude oil directly from the offshore rigs to the processing facility.

It takes a long time for students to respond to job market changes and enter the science pipeline.

Phys.org· 17 Aug 2026

Recruiting from EFL and Scottish academies therefore offers another way of building that development pipeline.

BBC News· 15 Aug 2026

From pipe + line.

Etymology adapted from Wiktionary, available under CC BY-SA 4.0.

This entry
Level C1 · Advanced
Frequency Common
Updated