Fresh air, especially that breathed at the seaside and smelling of seaweed.
An allotrope of oxygen (symbol O₃) having three atoms in the molecule instead of the usual two; it is a toxic gas, generated from oxygen by electrical discharge.
Hypernym: greenhouse gas
To treat with ozone.
The upper atmosphere occupied by clouds, flying birds, etc.
The place above the Earth where God or other deities live; heaven.
The sky which appears to an observer on the Earth as a dome in which celestial bodies are visible; the firmament.