[in-fuh n-tree]

noun, plural in·fan·tries.

soldiers or military units that fight on foot, in modern times typically with rifles, machine guns, grenades, mortars, etc., as weapons.
a branch of an army composed of such soldiers.

Nearby words

  1. infantile sexuality,
  2. infantile spasm,
  3. infantilism,
  4. infantilize,
  5. infantine,
  6. infantry fighting vehicle,
  7. infantryman,
  8. infants' school,
  9. infarct,
  10. infarction

Origin of infantry

1570–80; < Italian infanteria, equivalent to infante boy, foot-soldier (see infant) + -ria -ry

Related formsnon·in·fan·try, noun Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for infantry

British Dictionary definitions for infantry


noun plural -tries

  1. soldiers or units of soldiers who fight on foot with small arms
  2. (as modifier)an infantry unit
Abbreviation: Inf, inf

Word Origin for infantry

C16: from Italian infanteria, from infante boy, foot soldier; see infant

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for infantry



1570s, from French infantrie, from older Italian, Spanish infanteria "foot soldiers, force composed of those too inexperienced or low in rank for cavalry," from infante "foot soldier," originally "a youth," from Latin infantem (see infant). Meaning "infants collectively" is recorded from 1610s.

Online Etymology Dictionary, © 2010 Douglas Harper