arcem
arcem is a Latin form of arx, meaning “citadel, fortress; height, summit”. It is the accusative singular feminine noun.
Found 288 times in the Latin texts on Socratos.
Where it is used
Caesar, De Bello Gallico 1.38.4: hunc murus circumdatus arcem efficit et cum oppido coniungit.
Phaedrus, Fabulae 1.2.5: Arcem tyrannus occupat Pisistratus.
All forms of arx (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.