English Reference
verb

propagate

v.
US /ˈpɹɑpəˌɡeɪt/ UK /pɹˈɒpɐɡˌeɪt/ prop·a·gate UK spelling propagated, propagates, propagating

  1. 01 C1 Advanced Technical Science

    to grow new plants from an existing one, for example by using seeds or cuttings.

    to cause an organism to multiply by any process of natural reproduction from the parent stock.

    Simple

    You can propagate many house plants simply by putting a cutting in water.

    In context

    The nursery specializes in rare succulents that are notoriously difficult to propagate from leaf cuttings alone.

    Usage

    Often used with 'from' to indicate the source material.

  2. 02 C1 Advanced AcademicFormal

    to spread ideas, beliefs, or information to many people.

    to disseminate or spread a report, doctrine, or practice from person to person or place to place.

    Simple

    The group used social media to propagate their political views across the country.

    In context

    The philosopher's radical theories were propagated through a series of underground pamphlets and secret lectures during the late eighteenth century.

  3. 03 C1 Advanced Technical Science

    to move through a space or a substance, like sound or light waves.

    to transmit a wave, impulse, or energy through a medium.

    Simple

    Sound waves propagate more quickly through water than they do through air.

    In context

    The seismic waves propagate outward from the epicenter, losing intensity as they travel through different geological layers.

  4. 04 C1 Advanced Technical Computing

    to spread new data or settings through a whole computer system or network.

    to distribute or update data across all relevant nodes or devices in a network or database.

    Simple

    It may take up to 24 hours for the new website address to propagate across the internet.

    In context

    After the administrator updates the security policy, the changes must propagate to every workstation before the new rules take effect.

    Usage

    Commonly used as an intransitive verb in the context of DNS or database updates.

Optimizing the waveguide length could allow users to capture a broad spectrum while it is still clean and stable, before the coherence degrades as the pulse propagates further.

Phys.org· 24 Aug 2026

When one mentions "waves," we immediately think of a perturbation that propagates.

Phys.org· 14 Aug 2026

First attested in 1535; from Latin prōpāgātus, perfect passive participle of prōpāgō, see -ate (verb-forming suffix) and -ate (adjective-forming suffix). Participial usage up until Early Modern English.

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

This entry
Level C1 · Advanced
Frequency Occasional
Updated