English Reference
noun

infantry

n.
US /ˈɪnfəntɹi/ UK /ˈɪnfəntɹˌi/ in·fantry UK spelling infantries

  1. 01 B2 Upper Intermediate Military

    soldiers who are trained to fight on foot on the ground.

    the branch of an army that fights on foot, distinguished from cavalry, artillery, or armoured units.

    Simple

    The infantry marched for three days to reach the edge of the forest.

    In context

    Modern infantry units are often transported by helicopter or armoured vehicle, yet their primary role remains engaging the enemy on foot.

    Usage

    Often used as an uncountable collective noun or as a modifier before another noun.

    foot soldiersground troops
  2. 02 C1 Advanced HumorousInformal

    a funny way to talk about a group of babies or small children.

    a humorous, colloquial application of the military term to refer to infants or young children.

    Simple

    We need to clear the toys off the floor before the infantry arrives for the party.

    In context

    The quiet afternoon was abruptly terminated by the arrival of the local infantry, as six toddlers burst into the garden screaming.

    Teacher's tip

    This is a play on the word 'infant'. It is rarely used in serious writing and is mostly found in lighthearted conversation.


From Middle French infanterie, from older Italian, possibly from Spanish infantería (“foot soldiers, force composed of those too inexperienced or low in rank for cavalry”), from infante (“foot soldier”), originally "a youth", either way from Latin īnfāns (“child”); see there for more.

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

This entry
Origin Latin īnfāns
Level C1 · Advanced
Frequency Frequent
Updated