scuba (n.)

• aspiration
• bathyscaphe
• bathysphere
• breath
• breathing
• cough
• exhalation
• expiration
• gasp
• gulp
• hack
• hiccup
• inhalation
• inhalator
• inspiration
• insufflation
• pant
• periscope
• puff
• respiration
• sigh
• sneeze
• sniff
• sniffle
• snore
• snoring
• snorkel
• snuff
• snuffle
• sternutation
• stertor
• submarine
• suspiration
• wheeze
• wind