English Reference
adjective · noun

airborne

adj. · n.
US /ˈɛɹˌbɔɹn/ UK /ˈeəbɔːn/ air·borne

  1. 01 B2 Upper Intermediate Science

    adj.moving through the air, especially a plane that has just left the ground.

    adj.describing an aircraft or projectile that is in flight or has successfully transitioned from the ground to the air.

    Simple

    The pilot confirmed that the plane was safely airborne and heading north.

    In context

    Once the aircraft became airborne, the flight crew began their standard ascent procedures to reach the designated cruising altitude.

    Usage

    Usually follows the verb 'to be' or 'to become'.

  2. 02 B2 Upper Intermediate Technical Medicine

    adj.carried or spread through the air, like dust, seeds, or germs.

    adj.transported or suspended by air currents; frequently used in medical contexts to describe the transmission of pathogens.

    Simple

    The doctor explained that the virus is airborne, so you should wear a mask.

    In context

    Public health officials expressed concern regarding the airborne transmission of the bacteria in poorly ventilated indoor environments.

    Usage

    Often used before a noun like 'virus', 'pathogen', or 'particles'.

    atmosphericwindborne
    waterbornesoil borne
  3. 03 C1 Advanced Technical Science

    n.soldiers who are trained to jump out of planes into a battle.

    n.military infantry units specifically trained for deployment via parachute or aircraft landing.

    Simple

    He served in the airborne during the war and completed many jumps.

    In context

    The airborne were dropped behind enemy lines under the cover of darkness to secure the bridge before the main force arrived.

    Usage

    Often used as a collective noun or as a modifier in 'airborne division'.

But our data at the time couldn't clearly separate its effects from other airborne pollutants, particularly sulfur dioxide.

Phys.org· 26 Aug 2026

They detected sharp, short-lived increases in both coarse and fine airborne particles throughout the event.

ScienceDaily· 4 Jul 2026

Attested since the 1640s; air + -borne

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

This entry
Level B2 · Upper Intermediate
Frequency Frequent
Updated