The term 'words ending in '-phobia'' refers to a type of fear or anxiety disorder. The crossword solutions for this term are 'fears, ' which is a five-letter word. Fear and anxiety disorders can be caused by a variety of factors, including genetics, brain chemistry, and life experiences. People with these disorders often experience intense fear or anxiety in response to certain situations or objects. Common examples of words ending in '-phobia' include arachnophobia (fear of spiders), agoraphobia (fear of open spaces), and claustrophobia (fear of enclosed spaces).