Sound of hooter, it has gone off with two rings

• Sneeze sound
• Sneezing sound
• A blast this, room shelled in sound of mild explosion
• In dispute, heard report of expulsion
• Sound of a sneeze
• Heard in dispute: what calls for blessing?
• Sign of cold - and what's required, we hear?
• Explosion, after which children all fall down?

Wiktionary Word definitions in Wiktionary
interj. (alternative form of achoo English) n. (alternative spelling of achoo English)