zona: zone/area

Nasa danger zone tayo ngayon. "We are in the danger zone now."

zambales: (proper noun - province name, often used conversationally)

Maganda ang mga beach sa Zambales. "The beaches in Zambales are beautiful."

zesto: local juice brand (used generically for juice packs)

Bumili ako ng Zesto sa tindahan. "I bought a juice pack at the store."