castra ōrum, n
a military camp, encampment (regularly a square surrounded by a trench, and a wall with four gates): stativa, permanent: hiberna, L.: navalia, an encampment to protect a landing, Cs.: nautica, N.: bina: quinis castris oppidum circumdedit, Cs.: locum castris antecapere, S.: capere locum castris, L.: castra metari, Cs.: locare, S.: communire, Cs.: movere, to decamp, Cs.: castra castris conferre, L.: castra castris convertere, Cs.: castris se tenere, Cs.: ex castris abire, S.—Meton., a day's march (since a camp was pitched each evening): secundis castris pervenit, L.: alteris castris, L.: quintis castris, Cs.—Military service: castris uti, non palaestrā, N.: in castris usum habere, Cs.— Fig., a resting-place, abode (poet.): cerea, beehives, V. — A camp, army (of contending parties or sects): Hos castris adhibe socios, secure as allies, V.: Epicuri: nil cupientium, the party, H.