LATIN DICTIONARYLexicon Latīnum
noun · neutersecond declension

castra

castra n pl (genitive castrōrum)
Classical[ˈkas.tra]Ecclesiastical[ˈkas.tra]
Mille Verba core vocabulary

Meaning

  1. neuterpluralan encampment, military camp
    63 BCE, Cicero, In Catilinam orationes 1.5
  2. broadlyneuterpluralmilitary service
  3. neuterplurala philosophical sect
    62 BCE – 43 BCE, Cicero, Epistulae ad familiares 9.20

Latīnē defined in Latin in our graded readers

locus mūnītus ubi exercitus habitat et dormit.
castra -ōrum n pl — in Mille Verba, Bellum et Arma
camp
castra -ōrum — in Viri Romae Facillimi, ch. 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 15, 16, 17, 25

Declension

declension
formsingularplural
nominative—castra
genitive—castrōrum
dative—castrīs
accusative—castra
ablative—castrīs
vocative—castra

castra, ōrum and ae, v. castrum.

Origins

Plural of castrum (“fort, castle”)

Descendants
  • Old Englishċeaster

In the Academy Smith's classical dictionaries

Quick answers

What does castra mean in Latin?
castra, a noun, means “an encampment, military camp; military service; a philosophical sect”.
What is the genitive of castra?
The genitive singular is castrōrum. castra is neuter, second declension.
How do you pronounce castra?
In classical Latin, [ˈkas.tra]; in ecclesiastical (church) Latin, [ˈkas.tra].