campi
campi is a Latin form of campus, meaning “plain, field”. It is the nominative plural masculine noun or vocative plural masculine noun or genitive singular masculine noun.
Found 174 times in the Latin texts on Socratos.
Where it is used
Cicero, Pro P. Sulla 89: … fortuna, at ut adflicta patri suo gratulari sinatis. huic misero notiora sunt itinera iudiciorum et fori quam campi et disciplinarum. non iam de vita P. Sullae, iudices, sed de sepultura contenditur; vita erepta est superiore …
Ovid, Fasti 6.237: tunc ego me memini ludos in gramine Campi
All forms of campus (declension table)
Source: Socratos (socratos.org), a free reader for Ancient Greek and Latin. Grammar from the Perseus Treebank and Morpheus; dictionary entries from Lewis & Short, A Latin Dictionary (Perseus Digital Library, CC BY-SA). Counts are from the texts on Socratos.