claustrophobia
definition
an irrational fear of confined spaces
example
Her claustrophobia made it difficult for her to enjoy the elevator ride to the top of the skyscraper.
synonyms
agoraphobiaconfinement anxietyenclosed space anxiety
word origin — derived from the Latin 'claustrum' meaning 'enclosure' and 'phobia' from Greek 'phobos' meaning 'fear'