Here are the possible solutions for opening allowing entry of air or fluid clue
Answer
Clue
Relevancy
intake
Clue
Opening allowing entry of air or fluid
Definition
the act of taking in
accessroad
Clue
Street allowing entry to local businesses
ajar
Clue
Allowing entry, as a door
Allowing entry
Definition
partly open
breatheinandout
Clue
Expand the intrapleural space, automatically allowing entry through the pharynx and beyond, then allow the diaphragm to relax, contract, and expel contents