Z
- Zany - (noun) a buffoon in one of the old comedies
- Zealot - (noun) a fervent and even militant proponent of something
- Zenith - (noun) the point above the observer that is directly opposite the nadir on the imaginary sphere against which celestial bodies appear to be projected
- Zephyr - (noun) (Greek mythology) the Greek god of the west wind; a slight refreshing wind
- Zest - (verb) add herbs or spices to
- Zest - (noun) vigorous and enthusiastic enjoyment