I suffer from claustrophobia whenever I work out at the gym.
This elevator is claustrophobic.
The word of this week I would like to introduce is phobia. This word means “fear,” originating from the Greek, φόβος,phóbos. A phobia is an irrational, intense, morbid fear of things, situations, and activities, which is a psychological disorder. This condition could be clinical or non-clinical or non-psychological.
Here are some examples for you:
a) A homophobia is a fear of homo-sexuality or those with homosexual orientation.
b) A xenophobia is a fear of the other, unknown, strangers, and different nationalistic political systems (beliefs and movements).
c) A necrophobia is a fear of death or the dead.
d) A claustrophobia is a fear of the closing-in or no escape.
Here are more examples for you: http://en.wikipedia.org/wiki/List_of_phobias