- Giambattista Vico → Viconian Cycle → Vico's ricorso storico, or "historical return", which links one Viconian cycle with the next
- vicus: (Latin) village; street; quarter (of a city)
- Song of Solomon 3:2: "surgam et circuibo civitatem per vicos et plateas quaeram quem diligit anima mea quaesivi illum et non inveni - I will rise now, and go about the city in the streets, and in the broad ways I will seek him whom my soul loveth: I sought him, but I found him not."
- Commodius Vicus → spacious village → Dublin
- vicis: (Latin) fortune; change of fortune or conditions; vicissitude; duty, function, place
- Vico Road: a shore road from Dalkey  to Killiney , along Dublin Bay 
- vicus of recirculation → vicious cycle
- vicus of recirculation → hydrological cycle: the water of Dublin Bay is evaporated, becomes a cloud over Howth, which is blown inland; rain falls in the Dublin Mountains; the water is collected by the Liffey, which flows through the city, cleansing it (Giambattista means "John the Baptist") and carrying off its filth; the river discharges its contents into the Bay, and the cycle continues.