FROM STRONG’S GREEK DICTIONARY (1890)

Strong’s Greek Dictionary (1890) — public domain, printed whole.

phulake φυλακή — foo-lak-ay' — from 5442; a guarding or (concretely, guard), the act, the person; figuratively, the place, the condition, or (specially), the time (as a division of day or night), literally or figuratively:--cage, hold, (im-)prison(-ment), ward, watch.

see GREEK for 5442