insulae
insulae is a Latin form of insula, meaning “island; apartment block”. It is the nominative plural feminine noun.
Found 92 times in the Latin texts on Socratos.
Where it is used
Caesar, De Bello Gallico 4.20.4: Itaque vocatis ad se undique mercatoribus, neque quanta esset insulae magnitudo neque quae aut quantae nationes incolerent, neque quem usum belli haberent aut quibus institutis uterentur, neque qui essent ad maiorem navium multitudinem idonei portus reperire poterat.
Livy, Ab urbe condita 21.31.4: quartis castris ad Insulam peruenit. ibi †Sarar† Rhodanusque amnis diuersis ex Alpibus decurrentes, agri aliquantum amplexi confluunt in unum in mediis campis; Insulae nomen inditum.
All forms of insula (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.